Always put 91 to 93 in mine, but have been on a few trips where just couldn’t find high test all the time. I keep a couple small bottles of octane booster on my bike all the time. Thanks Doc.
Hey Doc, Great video, just wanting to add a-little more information about Filling up motorcycles, if your riding into a Fueling station and you see the Fuel Truck dumping a load of fuel into the tanks, you might want to going to another station if possible. Because all the settlement in those underground tank are being stir-up (take about 12 hours to settle down), so if you pump your motorcycle full of that, you'll be cleaning it out very soon there afterward (fuel filter, tank, carb(s)., injectors, and all). See ya on the road, ta somewhere. Not sitting beside it going nowhere Fast. 😉
All of the non-ethanol gas by me is the Rec 90 or 87. I’d run non-ethanol if I could find it in 91-93 octane. I’m sure the ethanol is destroying the carbs and such on my ‘05 Sportster 1200.
Depending on where you live, check the marinas out. Most around here (Western WA) sell 91-93 ethanol free because in most cases, gas sits in boats for a while.
Pumps today are Single Hose. Try to pull up to a pump where you see a vehicle pulling away that also burns Premium Gas. Otherwise, you are likely getting a hose full of regular before the premium starts coming out.
a hose is about 2 cups , not going to hurt anything , the pump shuts off , I drain the hose into my tank I paid for it . plus got 2 cups free the last guy paid for . been doing that since they come out with self service .
I will say that aside from the advice you covered, it's also highly recommended to use E-0 if that's an option. Modern Harleys are designed to safely operate on up to E-10, but straight gas is it's best friend, and worth opening your wallet a little more for. Also, it's a good idea to add a small amount of stabilizer in the tank when winterizing the bike. It'll pay off when the bike runs the same when you pull it back out of storage. Plus, if you use something like Seafoam, not only are you stabilizing the fuel, but also cleaning the entire system, to keep it running like the day it rolled off the truck at the dealership. Costs a whole lot less than a repair bill.
I actually do that very thing. I bought a bottle of Royal Purple and put it in my bike. Because it is a 2015 Harley Fatboy, to not only keep the fuel injectors clean. Because I bought the bike used, and don't know how much the previous owner took care of using their choice of gas. I will say this' I can tell a difference in the way it rides, when I did put the additive in it, which actually made it run really good. But'VI was also told I don't need to put it in at every time I feel it up.
@@darrinleazer6784 I was talking about gas treatment. As for general fuel-ups, I would recommend you ONLY ever use premium gas. Harleys are precision engineered, so the higher octane, the better. Use non-ethanol if possible ( never seen E-0 that was less than 93 octane ), but NEVER more than E-10, and never less than 89 octane in an emergency pinch. 91 to 93 if AT ALL possible.
@@Hero_of_Legend Thank you for explaining that to me. I wasn't sure what exactly you meant, I did find out that we have actually non ethanol gas that's 93 here. It's only at a certain little country store from where I actually live. So' I definitely will be getting my gas there for now on.
Doc, I concur. I've religiously ran premium in my '94 flhr (55,000 miles worth). But, I've always ran Marvel Mystery Oil too. I'm a firm believer in MMO for air cooled engines.
@Just J my condolences bud, the pain never goes away, I know. For the MMO, I add a shotglass every fillup. Every fillup. Doesn't do any good to go every other tank. Lucas is good stuff too, I just grew up on the mmo. My grandfather bought it by the case. Honestly, there's no way to prove or disprove it works. It may very well be snake oil. But at one time, if I remember right, it was endorsed by the FAA. My gf used it in ALL his engines, I just run it in my air cooled stuff.
Thanks for the info. I'm no where close to being a mechanic, but I wanna get more power out of my 103 dyna fat bob, but thanks to this video I now know not to try racing fuel. Very informative
I am lucky enough to have 91octane Sunoco no alcohol unleaded fuel where I live also 94 and 96 if you want it, (I use the 91) which is also available and they have 110 leaded fuel if you need it for $9.50 a gallon, but on trips I have to burn what I can get. Always been a problem, I went to Mexico City in 1963 on a Panhead and had to rebuild the top end when I got home because there were places that had only 69 octane fuel, it did get me home but there were a lot of other problems, I had to retard the timing to make it run, the problem was there was no lead in the fuel, Harley Davidson has come along way just like everyone else, Love this video!
The octane is an anti-knock rating, it has more to do with the ability of the fuel to resist detonation (pinging) at higher pressures found in high-compression engines such as boosted engines (turbo/super). Aircraft fly at altitudes and can over-boost at lower altitudes. It doesn't provide more "horsepower" or anything like that, you'd get the same amount of chemical energy burning 91 as you would 100 and >100 rated gasoline fuel.
@@LowCountryHarleyDavidson I'm an airplane mechanic, but I bought a 2014 xl883l not too long ago. Your videos are informative & helpful. Thank you Doc ;)
I live in the UK, I only put Shell V-Power fuel in my XL883N. Shell V-Power is 99 RON, I consider it to be the best fuel for my motorcycle, it gives me crisp, responsive performance.
Great advise Doc but hard to purchase fuel at the same location when you are traveling cross country. So recommend purchasing fuel from the same reputably gas provider. I also recommend getting a gas card from a top end gas station chain of your choice and use it for your motorcycle only. This way you have a record of the fuel purchase over the years you can refer back to. Just a tip from the road.
Lead was used to cushion the valves when they closed ,a by product of adding lead to gas was a higher octane ,aviation fuel is a low lead ,thus having a higher octane ,Doc Harley is correct use what manufacture recommends
My dad flys and we keep a bulk tank of AV gas on the farm so when the plane is hear we can fill it . ( Bulk fuel is cheaper ). So i do run some 100 low lead AV gas in my Harley’s . And all I can say is they sure seem to run A LOT better with it . I try not to run straight AV gas though . I get premium at the gas stations and when I’m at home I top them off with 100 low lead AV gas . It burns very clean and it does not go bad when in storage over winter .
The higher octane levels help prevent pre-ignition from occurring which can damage an engine over the long term. This is particularly important when running engines at higher compression ratios. Top Tier Gasoline have additives that help prevent the build of up carbon on the piston heads (carbon deposits: can also cause pre-ignition, due to both slightly reducing the chamber combustion area at TDC and thus increasing the pressure but also because of the higher specific heat capacity than aluminum pistons...this means that that more energy is stored on the piston heads (carbon deposits) than transferred to the combusted gases and expelled through the exhaust valves or transferred to the cooling fins on the piston heads.)
A word to the wise. If you purchase from a single house dispenser, these a good chance the previous customer used regular. It takes a few gallons to blead the dispenser equipment before premium flows.
The owners manual in the shop manual for my 2000 road king 88 in.³ says 87 or higher. It’s a lower compression engine and that’s good on 87 octane. But it runs higher octane as well. You cannot get 91 octane in every gas station, like North Dakota.
Oh goodness! What if I have been putting 87 in my 1994 heritage softail nostalgia with fuel cleaner every time? Eek. I don't think I have had any problems but will that hurt my engine long term? Love your channel and your way of speaking! Good teacher!
In italy we have a very hard time finding 91 93. I put 87 E5 in as it was the only choice. Man a few hours later my 08 1200 started to have a fit. Strange stuttering vibration. I nursed it home. Now out looking for some unleaded and additive to see if I can clear that up
I have very little knowledge of fuel where you ride. I am curious. The 1200 has your country origin specs? An imported US spec bike would have a problem and need to be returned….Doc
You talked about everything gas. I’ve one more question. Is 100% real gas better than 10% ethanol in a Harley? I’ve heard real gas has a longer shelf life and does not deteriorate soft metal and rubber hoses. Go ahead and set me straight on the issue. Certainly enjoy your channel, thank you…..
Your facts are all true. Here is the side note. All current models and Twin Cams are tuned by the factory for the 10% ethanol. So for the best running you would want the fuel and ignition retuned…Doc
What a great message Doc!... I'm also in NJ, and can not find ANY non-Ethanol stations, so many states have it...but not NJ....as far as I know. Thanks Doc....Sure wish we had seen you ride up to that "Filling Station"
A few years ago, I had a '92 Evo built up by Mid-Ohio HD. It had Branch heads, SE pushrods, SE manifold, Mikuni 45, SE air cleaner, EV-57 cam, stock displacement, I forget what the compression ration was, 9.5:1 I think.. Tuned, it was 80/80 Hp & torque. It would go from 60-90mph in a blink. The mechanic asked me about gas. I told him I always use high-test. He said you are blowing gas out the pipe. Only use 93 if your engine is over 10:1 compression. Now I'm riding a '16 Ultra Limited. I only see three grades of gas in FL: 87, 89 & 92. I gas at Shell and alternate 89 between and 92 octane so my mix is close to 91.
There's a lot of stations around Erie PA with 90 ethanol free. AV gas is also designed for constant rpm at altitude, so going to perform bad at sea level and the lead is not good to breath in or handle when servicing the fuel system.
5 месяцев назад+1
Riding near the border sw us, take octane booster. Only get gas at major staitions. Carry spare gas or be diligent.
@@LowCountryHarleyDavidson thks Ps..I'm working on a 01 sporty..883. I managed to find a add on tachometer kit from hd that someone had and never used.. It looks a bit crazy to do..any advice?
Gret video, but I have to disagree with the notion that if I get my gas at the same station, I can eliminate bad gas as the problem my motorcycle may be having. That gas station may buy the gas from different suppliers depending on their cost and we as consumers, may never know. Also, if you use your bike for touring, not for commuting to work or school, you will never get gas at the same station consistently.
Last summer I did a road trip every 150 miles I fill up have a smoke go , hit a Luv truck stop and had to fill up at 100 miles did not get 20 mpg even flipped on reserve think it was water or water with 100% alcohol , had it happened at a Speedway on my way back , I try my best to get Shell , Exxon, BP, Mobil or Texaco but when you need fuel and have no idea how far you can go and find gas you have to get what you find :( I been in the Rockies and only have corner store with a fuel pump , nothing for 150 to 200 miles . Even got bad gas up there , thought it was the carb and altitude nope bad fuel 35 to 40 mph up some of the mountains
When we’re out on a long (3 to 7 days) ride, we always make a stop in some kind of rest stop just before we need to fill up to scan the navigation system for an upcoming station in a fairly upper class neighborhood which usually means they fill their luxury & higher end sports cars with PREMIUM. Usually Mobile or Exxon 93*. Has worked so far. When at home, I always go to the same mobile station just off Palm Beach Island. Always see RR’s, Bentley’s, Porsches, Ferrari’s, etc at my station.
I checked my fsm for my 93 fxrs and it recommends 87 or better octane. I recently removed the float bowl of my S&S Super E and it was clean as can be after 27yrs on the bike. I'm sure it would be good to use premium but it doesn't seem necessary.
If you need to increase octane you can still buy the real lead used in pump fuel 50yrs ago online from BILL’s corvettes,it’s the real deal & not cheap but it works great. Been using it for over 30yrs in my bbc chevelle & classic 2 stroke triple & big 4 kawasaki’s too.
You should have mentioned to buy non-ethanol fuel if possible, my Harley runs much better without it. This is especially important for someone who rides only occasionally. Ethanol fuel will start to break down in a matter of weeks creating major problems in the machine trying to burn it.
I actually heard the exact same thing. I try to put 90 non ethanol in it all the time. But' I also do do a lot of riding to. So' I was also told that it's ok to, as long as I ride it more when I do, because of the way the 93 can do
I get 93 octane gas with ethanol (ethanol free is not available here, and not close by) I remove the ethanol, then use octane booster to bump up the octane rating lost from removing the ethanol
When I was on a coast to coast trip I tried every octane gas there is and it ran the same on anyone I used tried 87 all the way home and I got better gas mileage
Good info, but I would venture to say that there are a LOT of riders like myself who like to ride longer distances. That makes it impossible to get gas at the same station all the time. I just think it’s unreasonable to make that statement and expect people to follow that advice.
Hi Doc. Jaime Here. I have a problem with my bike. A 2013 H.D. Heritage Softale Classic. I took it out for a ride after storing it for the winter. I started it up and let it warm up. I then went out for a ride with a full tank. After riding for ONLY 30 miles. I came back home and was able to observe that my gas gauge meter was displaying E for empty. In addition the the dash board was displaying Low Range. I looked into the tank and was able to observe that I still had 3/4 of a tank. After speaking with numerous friends, looking through RUclips calling several H.D. Dealerships. They all stated that it may be my (SENDING UNIT GAS TANK FUEL LEVEL FLOAT SENSOR). The H.D. Dealership suggested that I bring in the bike for a diagnostic test. I wanted to know what your thoughts were on my issue. In addition, how does H.D. diagnose my issue. Do they connect my bike to a computer. Thanks
I accidently put 87 in my 883, put in a bunch of oct boost, it ran as long as I was giving it gas, at a stop I had to keep revving the engine to keep it running, it took twice getting it down to half tank and filling with 93 to get it running normal again. Did it again in my Dyna, no problems and MPG jumped from 46 to 50. I still use the 93 even though 4mpg less, I think its due to the 93 being older cause most cars use 87.......I don't know of any calling for 89
My dyno superglider has had full service less then 500 ks ago..big ride through Adelaide hills month go.strat it up once week keep battery charged.it's running low on fuel went for splat around the block it throughout a backfire and started playing up I am using high octane fuel
I'm sold on AV fuels, not because it's "100LL" but more because it has never had an issue, even when being stored for YEARS. If the bike sits even for a couple of years it's still gonna fire up without a problem. Emergency generators, they can sit for a few years before being needed, and fire up in seconds. My question about use in Harleys is the fuel system reaction? Being told for many years that AV can be used in anything that hasn't got cat-converters and not only not harm anything, but is less damaging to the fuel systems, what about the plastic type of Harley fuel lines? Fuel pumps? Regulators? I know the injectors are happy with AV, but I'm concerned with the in-tank stuff.
Doc, I think the "top tier" designation of fuels has to do with the amount and effectiveness of added detergents that prevent combustion chamber deposits. Octane is a discussion which you covered well. Additionally alcohol (ethanol or methanol) content is another discussion. Then lead (no longer in gas except for airplanes) content for old motorcycles is a consideration. "Top tier" can be any octane.
you all prolly dont give a damn but does anyone know of a method to log back into an instagram account..? I was stupid forgot the login password. I would love any help you can give me.
@Zyaire Benson I really appreciate your reply. I found the site on google and Im in the hacking process now. I see it takes a while so I will reply here later when my account password hopefully is recovered.
Been buying rec gas 91 instead of premium 93 as it is getting closer to end of riding season. I try to keep rec gas with stabilizer in motorcycle for winter. I don't start it in the winter. What about those high altitude places that run lower octanes? When 89 is premium.
It is always a choice. If that’s the only fuel available, I personally would purchase a tuning device and have my bike professionally tuned for that octane…..Doc
could you do a follow up with what the ethanol based fuel does while sitting around in the tanks during down time. Here in Arkansas I try to find the highest octane nonethanol fuel available. I've heard bad stories about what ethanol fuel does to engines like boats and lawn mowers while sitting through winter. Thanks for your posts!!
Those stories are true! I had an older Murray riding mower & put ethanol gas in it. It would spit, sputter & backfire & not want to run or start to where eventually, I had to buy a brand new mower. From that day forward I put nothing but pure gas in it & not once have I had those running & starting problems. That was 18 yrs. ago. So it does ruin motors over time. I personally will avoid using it if possible.
I have learned to use ethanol-free 91 octane in all my smaller engines (lawn mower, atv, side-by-side, lawn trimmer, etc.) otherwise the fuel gums up and I have to disassemble the carbs and clean them. Does ethanol-free gas create any problems for the Harley (mines an 2005 twin cam with fuel injection).
I would think it hard to find 91 ethanol free. Bike should run fine. Just understand the factory mapping was made with ethanol. So timing and fuel maps are not perfect….Doc
Yeah I hear that those numbers equate to lower octane here in the states but I’m not sure. So I’m assuming 97 is about equivalent to our premium here. I could be totally wrong though.
Yeah I’ve been using ethanol free in my m8 Harley. Runs good. Doesn’t feel much different but I’ve heard it runs a lot cleaner and does leave as much or really any carbon residue on your pistons.
Only problem where I live is that 95 only comes with 10% ethanol. We can’t find 95 RON E5 (95 RON is the American 91 PON) anymore. So if we wanna run on anything with less than 10% “moonshine”, we gotta go for European 98 RON or 100 ROB, which I assume it’s some insane number in American PON. Honestly I have no idea what’s better or worse… 95RON / 93PON with a lot of moonshine in it? Or higher octane than required, but with less “moonshine”. 🤷🏻♂️
@@LowCountryHarleyDavidson…. You’re totally right. Done it a few times actually, but whiskey and my friend don’t mix well with “science”. Last time someone tried to put Jäger Meister in an old 883 😂
Gas is gas. As long as the octane ratings are the same, it doesn’t matter what brand you use. It all comes from the same place and goes into the same tanks for transportation. It’s a dirty little secret they keep from you. That shell v power is the same stuff thats at the Exxon or chevron or Valero or local u save.
@Ronin Some states "OK & TX" gas station still offer uncut gas. Pure gas as they call it. I do get better gas millage and the bike runs a little better. Will not hurt the seals, lines or change the detonation as long as you run the recommend octane range 91-93.
What about Europe? I live in Belgium and we got 95 and 98 octane feul. Is this any good for my engine? If i go lower in octane (91 or 93) my bike starts to idle and ride differently. What about that?
Thanks,Doc. Concerning fuel, could you enlighten me about a 2012 Fatbob with a mild cam. My senior moment is impeding my memory as to the cam's i.d, think its a ' 538' which my Harley trained mechanic, David Crouch, installed replacing a set of '211' which I found, too 'lumpy' around town. Would burning 91 or 93 octane suffice for that level of modification and what can I expect, wear wise, using 95 or 98 octane, please'. The price of fuel in Oz bounces around at the fuelo's ' whim' - a term worthy of the NYT word of the day - ranges from 91 oc. about $1.97 @ litre to the premium 98oct. about @ $2.17 on any given day notwithstanding the, general, old public Holiday gouging practices. Concerned more about undue wear than performance. Thank you for all your previous advice.
Your fuel identification is far different than ours. Our owners manual highly suggests Premium fuel for Stock configuration. A Cam selection could concentrate compression in an area of RPM. A good Tune will help a lot. In our part of the World we have 89, 91 and 93. 91 is my choice. Do not choose the lowest octane…..Doc
Ride less aggressive with slow throttle opening. Be in the right gear so less stress on timing. A Tuner suggested a long distance trip might include a tune made for 87 octane. You’re not racing, you’re enjoying the ride….just some thoughts….Doc
Thanks so much! My husband's best friend died 1 and a half years ago and his Harley-Davidson hasn't been ridden since. We're wanting to know if we need to drain the old gas and put premium gas in it...what do you think?
Yes! drain the old fuel out..it wont be easy if fuel injected. Also it is possible the inside fuel pump parts are bad. The ethynol stuff turns to crystals and destroys parts. I wish you well. Doc
@@LowCountryHarleyDavidson thank you! We ended up putting some kind of engine additive in it along with good gasoline. He didnt drain it though. He put non ethanol gas in it. I guess he just put it in with the existing fuel. I pray it didnt ruin the engine. We rode it all day and it Rose fine. Thank you for your help. Do you think he harmed the engime?!
We are getting ripped off from gas stations that use one hose for all grades. Thirty percent of the first gallon is whatever the last customer purchased. I seek out gas stations that have a separate hose for each grade of fuel.
I could understand if you only ran 87-89 octane but to run a tank or two every now and then that shouldn’t hurt anything. If it does then Harley needs to address the issue
Will non ethanol regular be ok with octane booster? I'm asking because of the difference in mileage 37 vs 46 mpg. Im not talking about getting crazy with the octane booster, enough to get to the 91 - 93 range
I don’t suggest that. Your Stock Harley-Davidson motorcycle was tuned fuel and ignition by HD knowing the content of ethanol of every pump from coast to coast. Non-ethanol fuel burn differently which would suggest a different tune……Doc
Hi Doc I have a 2016 street glide with the Stage IV 110 Tire Shredder Kit. 10.5 pistons. Is it a good idea to use Octane Booster. I use the same station all the time the pump says 93. I heard some detonation and I added Octane Booster. I started with 2 oz. then went to 4 oz to a tank and it ran fine. My bike was tuned with the HD Race Tuner by an excellent Harley Tech and Dealer. Like your opinion
Here in Florida we have available at many stations “recreational fuel” with no ethanol at 90 octane. Your thoughts on running that 100% gasoline appreciated.
@@steveh4564 i have the same , an EVO engine..use 89 or 90 ethanol free you'll never have carb or tank issues , plus manual states to use 87 or higher..you'll be ok with that octane
Wow, 2 edge sword question. First non ethanol but second low octane....I would lean towards the 91 since the factory set up the fuel maps FOR 10 % ethanol....Doc
Hi Doc , I watch and like all your fantastic videos I have a question I'm hoping you could answer , I use ethanol-free fuel in my bikes I have a 2014 Street Bob and a 2014 FLS we don't ride them that often that's why I use the ethanol free fuel can I use fuel octane booster to bump it up to 91 octane , appreciate a response back when you have time thanks Doc have a wonderful day , David.
First it is always your choice. You already chose wisely with the non-ethanol for a bike that sits longer than 2 weeks. HD does not recommend any additive. If you choose, use sparingly. Remember instructions are for cars with big fuel tanks…..Doc
Wow. Thanks. I don't have an owners manual. I didn't know. I have a 2000 Heritage Classic. I was wondering what more I can do to get more power. Higher octane is a great idea.
Well' I actually have a question about this. Because where I live here in Lexington NC, we have both non ethanol and 93 octane. I was told to use the non ethanol gas because it's better for my Harley. I have a 2015 Fatboy, and I have used both. So' I guess my question is' which is better to use in my bike, non ethanol or 93 octane.
@@LowCountryHarleyDavidson WOW!! Ok' so' it doesn't hurt the fuel injectors if I use the 93 octane all the time then?. And I actually ride in the winter time, as long as it's not raining or snowing here. And since we don't live to far apart, you definitely should know how the weather is like, both here and down there in SC.
I have no idea what 93 is. Here in Australia we have 91, 91E10(10%ethanol), 95 and 98. I’ve been told by my dealership to use 98 only. 2012 stage 2 fat bob
![NOSFERATU - Official Trailer [HD] - Only In Theaters December 25](http://i.ytimg.com/vi/nulvWqYUM8k/mqdefault.jpg)
Always put 91 to 93 in mine, but have been on a few trips where just couldn’t find high test all the time. I keep a couple small bottles of octane booster on my bike all the time. Thanks Doc.
Hey Doc, Great video, just wanting to add a-little more information about Filling up motorcycles, if your riding into a Fueling station and you see the Fuel Truck dumping a load of fuel into the tanks, you might want to going to another station if possible. Because all the settlement in those underground tank are being stir-up (take about 12 hours to settle down), so if you pump your motorcycle full of that, you'll be cleaning it out very soon there afterward (fuel filter, tank, carb(s)., injectors, and all).
See ya on the road, ta somewhere. Not sitting beside it going nowhere Fast. 😉
Thanks for sharing such a scary tech tip....Doc
I use 91 octane non-ethenol. Never had any issues. Thanks!
hopefully the gas pump hose doesn't share with the ethanol.any tiny amount of ethanol will ruin it
@@paulbunyun-xi9by most pumps use different hoses .
V power shell. !!
Yep. No ethanol for me.
All of the non-ethanol gas by me is the Rec 90 or 87. I’d run non-ethanol if I could find it in 91-93 octane. I’m sure the ethanol is destroying the carbs and such on my ‘05 Sportster 1200.
Depending on where you live, check the marinas out. Most around here (Western WA) sell 91-93 ethanol free because in most cases, gas sits in boats for a while.
Hey Joe M. I lived in Morton WA. for a long while, the home of the Logger's Jubilee. Great place to ride to any time.
Definitely would like to find some of that. And see how much better it runs.
Great tip doc. I get my gas at a no ethanol premium pump except when I'm on the road if I can't find one. Then I put in a gas additive.
Pumps today are Single Hose. Try to pull up to a pump where you see a vehicle pulling away that also burns Premium Gas. Otherwise, you are likely getting a hose full of regular before the premium starts coming out.
anywheres from 1 to 1 1/2 gallons
Premiums are in their own tank the only one that gets blendid is the mid grade fuel
a hose is about 2 cups , not going to hurt anything , the pump shuts off , I drain the hose into my tank I paid for it . plus got 2 cups free the last guy paid for . been doing that since they come out with self service .
I quit using premium for that very reason. Took the words right from me.
🤔 Never thought about that...🤯
I will say that aside from the advice you covered, it's also highly recommended to use E-0 if that's an option. Modern Harleys are designed to safely operate on up to E-10, but straight gas is it's best friend, and worth opening your wallet a little more for.
Also, it's a good idea to add a small amount of stabilizer in the tank when winterizing the bike. It'll pay off when the bike runs the same when you pull it back out of storage. Plus, if you use something like Seafoam, not only are you stabilizing the fuel, but also cleaning the entire system, to keep it running like the day it rolled off the truck at the dealership. Costs a whole lot less than a repair bill.
I actually do that very thing. I bought a bottle of Royal Purple and put it in my bike. Because it is a 2015 Harley Fatboy, to not only keep the fuel injectors clean. Because I bought the bike used, and don't know how much the previous owner took care of using their choice of gas. I will say this' I can tell a difference in the way it rides, when I did put the additive in it, which actually made it run really good. But'VI was also told I don't need to put it in at every time I feel it up.
@@darrinleazer6784 Nah. Not necessary for every fuel up. The general rule of thumb is 1 treatment per oil change, or while winterizing.
@@Hero_of_Legend are you talking about the non ethanol or 93 octane
@@darrinleazer6784 I was talking about gas treatment. As for general fuel-ups, I would recommend you ONLY ever use premium gas. Harleys are precision engineered, so the higher octane, the better. Use non-ethanol if possible ( never seen E-0 that was less than 93 octane ), but NEVER more than E-10, and never less than 89 octane in an emergency pinch. 91 to 93 if AT ALL possible.
@@Hero_of_Legend Thank you for explaining that to me. I wasn't sure what exactly you meant, I did find out that we have actually non ethanol gas that's 93 here. It's only at a certain little country store from where I actually live. So' I definitely will be getting my gas there for now on.
Doc, I concur. I've religiously ran premium in my '94 flhr (55,000 miles worth). But, I've always ran Marvel Mystery Oil too. I'm a firm believer in MMO for air cooled engines.
Marvel mo really?
@Just J my condolences bud, the pain never goes away, I know.
For the MMO, I add a shotglass every fillup. Every fillup. Doesn't do any good to go every other tank. Lucas is good stuff too, I just grew up on the mmo. My grandfather bought it by the case.
Honestly, there's no way to prove or disprove it works. It may very well be snake oil. But at one time, if I remember right, it was endorsed by the FAA. My gf used it in ALL his engines, I just run it in my air cooled stuff.
MMO = Gimmick
Love my MarvelMO. Been using it all my life.
I use lucas fuel cleaner every few months
Thanks Doc, we’re up here in Northern Ontario. We take 3-4 trips in your country a year. Appreciate the tips!! Maybe a trip in 2021....
Doc, another spot on video. I don't own a HD but what you are saying 100% correct.
Thanks for the info. I'm no where close to being a mechanic, but I wanna get more power out of my 103 dyna fat bob, but thanks to this video I now know not to try racing fuel. Very informative
I am lucky enough to have 91octane Sunoco no alcohol unleaded fuel where I live also 94 and 96 if you want it, (I use the 91) which is also available and they have 110 leaded fuel if you need it for $9.50 a gallon, but on trips I have to burn what I can get. Always been a problem, I went to Mexico City in 1963 on a Panhead and had to rebuild the top end when I got home because there were places that had only 69 octane fuel, it did get me home but there were a lot of other problems, I had to retard the timing to make it run, the problem was there was no lead in the fuel, Harley Davidson has come along way just like everyone else, Love this video!
The octane is an anti-knock rating, it has more to do with the ability of the fuel to resist detonation (pinging) at higher pressures found in high-compression engines such as boosted engines (turbo/super). Aircraft fly at altitudes and can over-boost at lower altitudes. It doesn't provide more "horsepower" or anything like that, you'd get the same amount of chemical energy burning 91 as you would 100 and >100 rated gasoline fuel.
Thank you for adding your insight…Doc
@@LowCountryHarleyDavidson I'm an airplane mechanic, but I bought a 2014 xl883l not too long ago. Your videos are informative & helpful. Thank you Doc ;)
I just started noticing that in WI, the Kwik trips have 91 octane with 100% gasoline, NO ethanol.
I live in the UK, I only put Shell V-Power fuel in my XL883N. Shell V-Power is 99 RON, I consider it to be the best fuel for my motorcycle, it gives me crisp, responsive performance.
Great video Thanks!! I only put chevron & Premium 91 octane!! 😎👍🏻
Great advise Doc but hard to purchase fuel at the same location when you are traveling cross country. So recommend purchasing fuel from the same reputably gas provider. I also recommend getting a gas card from a top end gas station chain of your choice and use it for your motorcycle only. This way you have a record of the fuel purchase over the years you can refer back to. Just a tip from the road.
Lead was used to cushion the valves when they closed ,a by product of adding lead to gas was a higher octane ,aviation fuel is a low lead ,thus having a higher octane ,Doc Harley is correct use what manufacture recommends
My dad flys and we keep a bulk tank of AV gas on the farm so when the plane is hear we can fill it . ( Bulk fuel is cheaper ). So i do run some 100 low lead AV gas in my Harley’s . And all I can say is they sure seem to run A LOT better with it . I try not to run straight AV gas though . I get premium at the gas stations and when I’m at home I top them off with 100 low lead AV gas . It burns very clean and it does not go bad when in storage over winter .
Thanks for sharing your story and giving us food for out table through your family farm...Doc
thumbs up for having a plane that can hear!
I had a hot rod and mixed av gas and super gas, run great.
The higher octane levels help prevent pre-ignition from occurring which can damage an engine over the long term. This is particularly important when running engines at higher compression ratios. Top Tier Gasoline have additives that help prevent the build of up carbon on the piston heads (carbon deposits: can also cause pre-ignition, due to both slightly reducing the chamber combustion area at TDC and thus increasing the pressure but also because of the higher specific heat capacity than aluminum pistons...this means that that more energy is stored on the piston heads (carbon deposits) than transferred to the combusted gases and expelled through the exhaust valves or transferred to the cooling fins on the piston heads.)
Thanks for the advice. (btw, this Slim is nice...) Hello from France & a 2011 Softail Blackline owner.
A word to the wise.
If you purchase from a single house dispenser, these a good chance the previous customer used regular.
It takes a few gallons to blead the dispenser equipment before premium flows.
Hose, not house....geez
The owners manual in the shop manual for my 2000 road king 88 in.³ says 87 or higher. It’s a lower compression engine and that’s good on 87 octane. But it runs higher octane as well. You cannot get 91 octane in every gas station, like North Dakota.
Thanks for sharing
Oh goodness! What if I have been putting 87 in my 1994 heritage softail nostalgia with fuel cleaner every time? Eek. I don't think I have had any problems but will that hurt my engine long term? Love your channel and your way of speaking! Good teacher!
1987 has a CB pretty low compression ratio so if it has worked for you this long👍…..Doc
I use 87 Regular 10 Percent Ethanol. ‘03, carbureted, Stone stock 88CID, 84,000 miles. So far so good.
In italy we have a very hard time finding 91 93. I put 87 E5 in as it was the only choice. Man a few hours later my 08 1200 started to have a fit. Strange stuttering vibration. I nursed it home. Now out looking for some unleaded and additive to see if I can clear that up
I have very little knowledge of fuel where you ride. I am curious. The 1200 has your country origin specs? An imported US spec bike would have a problem and need to be returned….Doc
You talked about everything gas. I’ve one more question. Is 100% real gas better than 10% ethanol in a Harley? I’ve heard real gas has a longer shelf life and does not deteriorate soft metal and rubber hoses. Go ahead and set me straight on the issue. Certainly enjoy your channel, thank you…..
Your facts are all true. Here is the side note. All current models and Twin Cams are tuned by the factory for the 10% ethanol. So for the best running you would want the fuel and ignition retuned…Doc
What a great message Doc!... I'm also in NJ, and can not find ANY non-Ethanol stations, so many states have it...but not NJ....as far as I know. Thanks Doc....Sure wish we had seen you ride up to that "Filling Station"
Check out puregas web site for listing of stations that carry ethanol free gas
I’ve never had a problem with small engines running 91 and using stabilizer when storing them for the season.
Stabilizer is the key....Doc
Awesome tip about using the same gas station to fill up
Doc you are the best!! You just answered all my questions. Thank you!
Thank you that's probably why my 2011 Rg cvo jerks so bad at parking lot speed
A few years ago, I had a '92 Evo built up by Mid-Ohio HD. It had Branch heads, SE pushrods, SE manifold, Mikuni 45, SE air cleaner, EV-57 cam, stock displacement, I forget what the compression ration was, 9.5:1 I think.. Tuned, it was 80/80 Hp & torque. It would go from 60-90mph in a blink. The mechanic asked me about gas. I told him I always use high-test. He said you are blowing gas out the pipe. Only use 93 if your engine is over 10:1 compression. Now I'm riding a '16 Ultra Limited. I only see three grades of gas in FL: 87, 89 & 92. I gas at Shell and alternate 89 between and 92 octane so my mix is close to 91.
There's a lot of stations around Erie PA with 90 ethanol free. AV gas is also designed for constant rpm at altitude, so going to perform bad at sea level and the lead is not good to breath in or handle when servicing the fuel system.
Riding near the border sw us, take octane booster. Only get gas at major staitions. Carry spare gas or be diligent.
another well explained tip, thanks 😊
I put a shot of atf in my bikes for winter storage in mn, even tho they are in a heated garage..
Interesting Tech Tip….Doc
@@LowCountryHarleyDavidson thks
Ps..I'm working on a 01 sporty..883. I managed to find a add on tachometer kit from hd that someone had and never used..
It looks a bit crazy to do..any advice?
Gret video, but I have to disagree with the notion that if I get my gas at the same station, I can eliminate bad gas as the problem my motorcycle may be having. That gas station may buy the gas from different suppliers depending on their cost and we as consumers, may never know. Also, if you use your bike for touring, not for commuting to work or school, you will never get gas at the same station consistently.
Last summer I did a road trip every 150 miles I fill up have a smoke go , hit a Luv truck stop and had to fill up at 100 miles did not get 20 mpg even flipped on reserve think it was water or water with 100% alcohol , had it happened at a Speedway on my way back , I try my best to get Shell , Exxon, BP, Mobil or Texaco but when you need fuel and have no idea how far you can go and find gas you have to get what you find :( I been in the Rockies and only have corner store with a fuel pump , nothing for 150 to 200 miles . Even got bad gas up there , thought it was the carb and altitude nope bad fuel 35 to 40 mph up some of the mountains
When we’re out on a long (3 to 7 days) ride, we always make a stop in some kind of rest stop just before we need to fill up to scan the navigation system for an upcoming station in a fairly upper class neighborhood which usually means they fill their luxury & higher end sports cars with PREMIUM. Usually Mobile or Exxon 93*. Has worked so far.
When at home, I always go to the same mobile station just off Palm Beach Island. Always see RR’s, Bentley’s, Porsches, Ferrari’s, etc at my station.
I didn't think it was a gret video.
I checked my fsm for my 93 fxrs and it recommends 87 or better octane. I recently removed the float bowl of my S&S Super E and it was clean as can be after 27yrs on the bike. I'm sure it would be good to use premium but it doesn't seem necessary.
I have a 97 dyna with Carb , did you use ethanol free gas?
@@chrisgil4594
Sometimes, but not on a regular basis.
@@Cpcsof1 ok thanks, then I should be good , i use 89 octane ethanol free gas
My 98 S H. Classic's manual says use a min of 87 oct unleaded so I usually run 91 oct non-ethenol
Great advise as always.
Thank you so much
Thanks for watching….Doc
If you need to increase octane you can still buy the real lead used in pump fuel 50yrs ago online from BILL’s corvettes,it’s the real deal & not cheap but it works great.
Been using it for over 30yrs in my bbc chevelle & classic 2 stroke triple & big 4 kawasaki’s too.
Thanks Scott….Doc
You should have mentioned to buy non-ethanol fuel if possible, my Harley runs much better without it. This is especially important for someone who rides only occasionally. Ethanol fuel will start to break down in a matter of weeks creating major problems in the machine trying to burn it.
I actually heard the exact same thing. I try to put 90 non ethanol in it all the time. But' I also do do a lot of riding to. So' I was also told that it's ok to, as long as I ride it more when I do, because of the way the 93 can do
I get 93 octane gas with ethanol (ethanol free is not available here, and not close by)
I remove the ethanol, then use octane booster to bump up the octane rating lost from removing the ethanol
My owners manual for my 2000 road king says 87 octane or higher. Does fine on 87.
Great tip as always and always great to see you
Love these videos, thanks guys!
When I was on a coast to coast trip I tried every octane gas there is and it ran the same on anyone I used tried 87 all the way home and I got better gas mileage
Thanks for sharing. You are one lucky owner....Doc
Doc I have 94 octane available to me. Would that be okay for my 2012 sportster nightster or should I stick to the 91 range?
Save your money and run 91...Doc
@@LowCountryHarleyDavidson thanks Doc!
Good info, but I would venture to say that there are a LOT of riders like myself who like to ride longer distances. That makes it impossible to get gas at the same station all the time. I just think it’s unreasonable to make that statement and expect people to follow that advice.
Hi Doc.
Jaime Here.
I have a problem with my bike. A 2013 H.D. Heritage Softale Classic. I took it out for a ride after storing it for the winter. I started it up and let it warm up. I then went out for a ride with a full tank. After riding for ONLY 30 miles. I came back home and was able to observe that my gas gauge meter was displaying E for empty. In addition the the dash board was displaying Low Range. I looked into the tank and was able to observe that I still had 3/4 of a tank. After speaking with numerous friends, looking through RUclips calling several H.D. Dealerships. They all stated that it may be my (SENDING UNIT GAS TANK FUEL LEVEL FLOAT SENSOR). The H.D. Dealership suggested that I bring in the bike for a diagnostic test. I wanted to know what your thoughts were on my issue. In addition, how does H.D. diagnose my issue. Do they connect my bike to a computer. Thanks
In much of the West, there are Maverick stations. Ethanol Free 91-93 octane. That’s what I’m talkin about.
I accidently put 87 in my 883, put in a bunch of oct boost, it ran as long as I was giving it gas, at a stop I had to keep revving the engine to keep it running, it took twice getting it down to half tank and filling with 93 to get it running normal again.
Did it again in my Dyna, no problems and MPG jumped from 46 to 50. I still use the 93 even though 4mpg less, I think its due to the 93 being older cause most cars use 87.......I don't know of any calling for 89
My dyno superglider has had full service less then 500 ks ago..big ride through Adelaide hills month go.strat it up once week keep battery charged.it's running low on fuel went for splat around the block it throughout a backfire and started playing up I am using high octane fuel
Nice back drop and good subject material!
I'm sold on AV fuels, not because it's "100LL" but more because it has never had an issue, even when being stored for YEARS. If the bike sits even for a couple of years it's still gonna fire up without a problem. Emergency generators, they can sit for a few years before being needed, and fire up in seconds. My question about use in Harleys is the fuel system reaction? Being told for many years that AV can be used in anything that hasn't got cat-converters and not only not harm anything, but is less damaging to the fuel systems, what about the plastic type of Harley fuel lines? Fuel pumps? Regulators? I know the injectors are happy with AV, but I'm concerned with the in-tank stuff.
Was this meant to be a comedy? Thank you , I enjoyed laughing.
I feel honored you watched and left a post👍…..Doc
I always run (88-90) midgrade but maybe I should start using (91-94) premium. Thanks for the info! 2017 Ultra Limited 107 M8
Higher the Octane, Cooler the Burn...Same with Old VW's...91+ is an absolute must!
All i run is non ethanol premium 91 93 in my 2017 M8 never had a problem
Been running regular 87 for years no problem , only difference is cost .
Whoooo, i was using 91 just cause I thought it would be better on my injectors.
Thanks for the info Doc!
Doc, I think the "top tier" designation of fuels has to do with the amount and effectiveness of added detergents that prevent combustion chamber deposits. Octane is a discussion which you covered well. Additionally alcohol (ethanol or methanol) content is another discussion. Then lead (no longer in gas except for airplanes) content for old motorcycles is a consideration. "Top tier" can be any octane.
you all prolly dont give a damn but does anyone know of a method to log back into an instagram account..?
I was stupid forgot the login password. I would love any help you can give me.
@Armando Nicolas instablaster =)
@Zyaire Benson I really appreciate your reply. I found the site on google and Im in the hacking process now.
I see it takes a while so I will reply here later when my account password hopefully is recovered.
@Zyaire Benson It worked and I actually got access to my account again. I'm so happy:D
Thank you so much you saved my ass !
@Armando Nicolas glad I could help xD
I get my gas from Taco Bell
And White Castle
Bush beans
Hey me too 😆
That hilarious!
@Thomas Campbell 💍
Been buying rec gas 91 instead of premium 93 as it is getting closer to end of riding season. I try to keep rec gas with stabilizer in motorcycle for winter. I don't start it in the winter. What about those high altitude places that run lower octanes? When 89 is premium.
It is always a choice. If that’s the only fuel available, I personally would purchase a tuning device and have my bike professionally tuned for that octane…..Doc
could you do a follow up with what the ethanol based fuel does while sitting around in the tanks during down time. Here in Arkansas I try to find the highest octane nonethanol fuel available. I've heard bad stories about what ethanol fuel does to engines like boats and lawn mowers while sitting through winter. Thanks for your posts!!
Those stories are true!
I had an older Murray riding mower & put ethanol gas in it. It would spit, sputter & backfire & not want to run or start to where eventually, I had to buy a brand new mower. From that day forward I put nothing but pure gas in it & not once have I had those running & starting problems. That was 18 yrs. ago. So it does ruin motors over time. I personally will avoid using it if possible.
Great information Doc. But one misquote. Ethanol not methanol
I have learned to use ethanol-free 91 octane in all my smaller engines (lawn mower, atv, side-by-side, lawn trimmer, etc.) otherwise the fuel gums up and I have to disassemble the carbs and clean them. Does ethanol-free gas create any problems for the Harley (mines an 2005 twin cam with fuel injection).
I would think it hard to find 91 ethanol free. Bike should run fine. Just understand the factory mapping was made with ethanol. So timing and fuel maps are not perfect….Doc
Always great info, thank you!!
Great info thanks again Doc!
Awesome advise
We only have 94 and 97 in the UK. I put 97 and always from BP or Shell. Thanks Doc
Yeah I hear that those numbers equate to lower octane here in the states but I’m not sure. So I’m assuming 97 is about equivalent to our premium here. I could be totally wrong though.
@@danielbouchie6397 I am not sure either. I believe Ethanol free fuel is very good too. Quite sure we do not have that here in the UK.
Yeah I’ve been using ethanol free in my m8 Harley. Runs good. Doesn’t feel much different but I’ve heard it runs a lot cleaner and does leave as much or really any carbon residue on your pistons.
@@danielbouchie6397 yes i hear the same. Shawn Smoak likes to use it in his Harleys (popular vlogger). Thanks and have a good day.
I’ll check him out. Have a good one man!
I love that little aft cargo rack you have, where can I get one
It is an HD part sold for Twin Cam Softtail…Doc
Thanks for the tip appreciate it
Good information! In my old shovelhead I add a little dose of additive every 2 stops. Here in France we have mostly 95 and 98 octane. 98 is the best!
Only problem where I live is that 95 only comes with 10% ethanol. We can’t find 95 RON E5 (95 RON is the American 91 PON) anymore. So if we wanna run on anything with less than 10% “moonshine”, we gotta go for European 98 RON or 100 ROB, which I assume it’s some insane number in American PON. Honestly I have no idea what’s better or worse… 95RON / 93PON with a lot of moonshine in it? Or higher octane than required, but with less “moonshine”. 🤷🏻♂️
That is a question that could be talked about all night long with whiskey…..Doc
@@LowCountryHarleyDavidson…. You’re totally right. Done it a few times actually, but whiskey and my friend don’t mix well with “science”. Last time someone tried to put Jäger Meister in an old 883 😂
Gas is gas. As long as the octane ratings are the same, it doesn’t matter what brand you use. It all comes from the same place and goes into the same tanks for transportation. It’s a dirty little secret they keep from you. That shell v power is the same stuff thats at the Exxon or chevron or Valero or local u save.
I thank you for your advice but could you post your fact soarce..Doc
Doc, I try to use non-ethanol....mostly top of the line Shell.
My '10 V-rod VRSCAW is stock. Runs best on no alcohol.
the next day after using a non-shell ethanol blended gas, my quick coupler o-ring sprung a leak.
Thanks again Doc! Great info!
Doc, living in Florida can I use non ethinol (boat fuel) Its great for lawn mowers, trimmers and boat engines, how about my 2015 roadking ?
@Ronin Some states "OK & TX" gas station still offer uncut gas. Pure gas as they call it. I do get better gas millage and the bike runs a little better. Will not hurt the seals, lines or change the detonation as long as you run the recommend octane range 91-93.
.
Wish I could find good fuel here in Northern Nevada. Ours is crap that comes out of CA. Can get no ethanol gas but only 87 octane
Sad…..Doc
What about Europe? I live in Belgium and we got 95 and 98 octane feul. Is this any good for my engine? If i go lower in octane (91 or 93) my bike starts to idle and ride differently. What about that?
I do not know how Euro bikes are tuned. Follow your owners manual requirements….Doc
Thanks,Doc.
Concerning fuel, could you enlighten me about a 2012 Fatbob with a mild cam. My senior moment is impeding my memory as to the cam's i.d, think its a ' 538' which my Harley trained mechanic, David Crouch, installed replacing a set of '211' which I found, too 'lumpy' around town. Would burning 91 or 93 octane suffice for that level of modification and what can I expect, wear wise, using 95 or 98 octane, please'.
The price of fuel in Oz bounces around at the fuelo's ' whim' - a term worthy of the NYT word of the day - ranges from 91 oc. about $1.97 @ litre to the premium 98oct. about @ $2.17 on any given day notwithstanding the, general, old public Holiday gouging practices.
Concerned more about undue wear than performance.
Thank you for all your previous advice.
Your fuel identification is far different than ours. Our owners manual highly suggests Premium fuel for Stock configuration. A Cam selection could concentrate compression in an area of RPM. A good Tune will help a lot. In our part of the World we have 89, 91 and 93. 91 is my choice. Do not choose the lowest octane…..Doc
What is your recommendation for travel into areas where 91-93 are not available?
Ride less aggressive with slow throttle opening. Be in the right gear so less stress on timing. A Tuner suggested a long distance trip might include a tune made for 87 octane. You’re not racing, you’re enjoying the ride….just some thoughts….Doc
Excellent video Doc as usual !
I would love to come visit you Doc! Get some good bbq.
Thanks so much! My husband's best friend died 1 and a half years ago and his Harley-Davidson hasn't been ridden since. We're wanting to know if we need to drain the old gas and put premium gas in it...what do you think?
Yes! drain the old fuel out..it wont be easy if fuel injected. Also it is possible the inside fuel pump parts are bad. The ethynol stuff turns to crystals and destroys parts. I wish you well. Doc
@@LowCountryHarleyDavidson thank you! We ended up putting some kind of engine additive in it along with good gasoline. He didnt drain it though. He put non ethanol gas in it. I guess he just put it in with the existing fuel. I pray it didnt ruin the engine. We rode it all day and it Rose fine. Thank you for your help. Do you think he harmed the engime?!
I use premium gas with stabilizer.
We are getting ripped off from gas stations that use one hose for all grades.
Thirty percent of the first gallon is whatever the last customer purchased.
I seek out gas stations that have a separate hose for each grade of fuel.
On my second bike (XL1200S), fuel without ethanol, I got 15 more miles per a tank of gas.
94 here in Calgary,
I could understand if you only ran 87-89 octane but to run a tank or two every now and then that shouldn’t hurt anything. If it does then Harley needs to address the issue
Will non ethanol regular be ok with octane booster? I'm asking because of the difference in mileage 37 vs 46 mpg. Im not talking about getting crazy with the octane booster, enough to get to the 91 - 93 range
I have been using 89 non-ethanol because I thought it was better. I should use 93 with 10% ethanol instead?
Yes….Doc
What about ethanol content? Should I be using rec fuel if it’s available?
I don’t suggest that. Your Stock Harley-Davidson motorcycle was tuned fuel and ignition by HD knowing the content of ethanol of every pump from coast to coast. Non-ethanol fuel burn differently which would suggest a different tune……Doc
Hi Doc I have a 2016 street glide with the Stage IV 110 Tire Shredder Kit. 10.5 pistons. Is it a good idea to use Octane Booster. I use the same station all the time the pump says 93. I heard some detonation and I added Octane Booster. I started with 2 oz. then went to 4 oz to a tank and it ran fine. My bike was tuned with the HD Race Tuner by an excellent Harley Tech and Dealer. Like your opinion
Here in Florida we have available at many stations “recreational fuel” with no ethanol at 90 octane. Your thoughts on running that 100% gasoline appreciated.
Steve H this is also my question?? Exact same thing here in Alabama.
If you want to run that gas you can but you must only use that gas. You can’t switch back and forth between pure and not.
@@LowCountryHarleyDavidson Appreciate the reply. I neglected to mention its a non-ecm equiped carburated EVO
Thanks for the info doc, what are your thoughts about winter storage of fuel in our bikes for us up here in cold country? Thanks!
@@steveh4564 i have the same , an EVO engine..use 89 or 90 ethanol free you'll never have carb or tank issues , plus manual states to use 87 or higher..you'll be ok with that octane
Thanks Doc. Thoughts on 87 octane ethanol free? We have that in our area, but I've been using 91 since I've had my HD.
Wow, 2 edge sword question. First non ethanol but second low octane....I would lean towards the 91 since the factory set up the fuel maps FOR 10 % ethanol....Doc
@@LowCountryHarleyDavidson Thanks that’s what I figured just thought I’d ask
Hi Doc , I watch and like all your fantastic videos I have a question I'm hoping you could answer , I use ethanol-free fuel in my bikes I have a 2014 Street Bob and a 2014 FLS we don't ride them that often that's why I use the ethanol free fuel can I use fuel octane booster to bump it up to 91 octane , appreciate a response back when you have time thanks Doc have a wonderful day , David.
First it is always your choice. You already chose wisely with the non-ethanol for a bike that sits longer than 2 weeks. HD does not recommend any additive. If you choose, use sparingly. Remember instructions are for cars with big fuel tanks…..Doc
Wow. Thanks. I don't have an owners manual. I didn't know. I have a 2000 Heritage Classic. I was wondering what more I can do to get more power. Higher octane is a great idea.
Have some head work done on your engine buy someone who knows what they're doing.
Well' I actually have a question about this. Because where I live here in Lexington NC, we have both non ethanol and 93 octane. I was told to use the non ethanol gas because it's better for my Harley. I have a 2015 Fatboy, and I have used both. So' I guess my question is' which is better to use in my bike, non ethanol or 93 octane.
The manufacturer recommends the 93. I do endorse non ethanol when storing….Doc
@@LowCountryHarleyDavidson WOW!! Ok' so' it doesn't hurt the fuel injectors if I use the 93 octane all the time then?. And I actually ride in the winter time, as long as it's not raining or snowing here. And since we don't live to far apart, you definitely should know how the weather is like, both here and down there in SC.
Very good information. Thanks sir
I have no idea what 93 is. Here in Australia we have 91, 91E10(10%ethanol), 95 and 98. I’ve been told by my dealership to use 98 only. 2012 stage 2 fat bob