I've kept track of the real consumption of my car for 2 years (around 80 tanks) and tracked the difference between 95 and premium (almost always Shell V-power) and there is 0.5% difference between them - well within the margin of error of the pump or temperature differences when filling the tank. We all know that high octane has a purpose in more highly tuned applications but fuel economy is not the main benefit in most vehicles.
It completely depends on the engine as to what octane fuel it should use . The Subaru has higher compression and thus needs a higher octane to run properly. If you don’t us 99 on a ej257 it is going to start running lumpy
People like the idea of doing something that gives them more power. Even if it's only measurable in their mood, and not the horse power or fuel consumption.
@@TychoRasch modern engines can measure if they start to knock ( self ignition of the fuel ). You do not want the fuel to ignite itself. So you want high octane or lower compression. Modern gasoline engines can use 95 octane and above. BUT, many, like in my car, are made for 98 Octane ( 200 hp ). However, you CAN use 95 Octane. Because the engine has piezo sensors to recognize knocking. On 95 Octane the engine WILL start to knock. The sensor recognizes it and the ECU is lowering boost pressure etc to prevent the car from knocking. What does that mean? You get less efficiency and 185 instead of 200 hp on 95 octane with many modern engines. So it is far FAR FAAAAAR more than just the "mood". It is more than 10% difference in total.
@@dom3827 you're arguing air here. I thought it was understood you put in at least the minimum required fuel grade. Of course putting in the wrong fuel (grade) will have adverse effect, no one here argues against that.
@@TychoRasch i think its nessessarry to tell because manufracturers nowaday advertise 95 octane, but 98 is adviced. At least in germany. Not everyone knows the fact that this actually decreases advertised hp.
If the car was designed to run on premium fuel it is more likely to loose power with cheaper, low octane fuel. The reason for this is that most cars today have a knock sensor, and if it detects knock it will reduse ignition timing and hence reduce power with the cheaper fuel in it. If a car was designed to run on cheaper fuel in the first place, there will be no gain with high octane fuel. It won't compensate for the more premium fuel and advance the timing, it will just run the standard map. You may even loose power, as the higher octane fuel is less likely to self ignite and may take longer to ignite than the regular fuel. High octane fuel is more knock resistant and allows the engine to have higher compression and more advanced timing, which gives the engine more power. So upgrading the fuel alone in a car that is designed to run on lower octane is a waste of money, simple as that. Some older vehicles have a switch where you can choose if you are going to use low or high octane fuel depending on availability. What this switch does is either retard or advance the timing, based on which fuel you are going to use. The advanced timing is what gives you power and higher octane fuel is what makes it safe to do so. Otherwise it would self ignite, overheat and possibly melt a piston. Much like a lean mixture would do.
@@RichardEnglander The efficiency is increasing a little bit, but ethanol has 30% less energy than petrol, but it's more effective with ethanol overall
E10 can wear the valve seals and damage the fuel pump. The extra ethanol is detrimental to perfomance unlike fuel additives that have ethanol plus some other ingredients and are purely meant for short-term use to clean the engine.
I drive a vw scirocco R it's tuned by vw to use high octane fuels. Using standard unleaded will damage it. It's also 5% ethanol compared to the new e10 so it's well worth the extra money
Imho the greatest benefit is the cleaning effect! I really think that engines live longer when you always buy ultimate. So in an older car where the engine was dirty inside and gets clean it will also produce more horsepower (at least in comparison to before)...
Shell V-power diesel is my second choice for a Mercedes 250CDI. Total Fina is number one. The car runs quieter and smoother with the best mileage. My friends that have tried it and paid attention agree for their diesels. For gasoline, I have not noticed a difference between fuels in my other car's running character, a VW Golf 7.
I get this, if you have a tuned sports car ie like the impreza and above cars the high octane fuel will work but put in a bog standard car ie Ford fiesta then its completely useless Great upload 👍
Iv got a vectra Sri 1.8 with pipercross air filter and remap, tried momentum and the car developed a misfire so I switched back to vpower. Used vpower for years and in my opinion it’s the best fuel, better mpg and more responsive and smoother running engine, well worth the extra wedge if you can afford it.
I used to have an STi. Drank V-Power for fun, ran like crap on 97 Octane BP or Texaco crap though, very sensitive. Now I run a Fiesta ST and have a REVO map. I can set it for cheap 95 fuel but if I can use Tesco 99 Momentum. As good as V-Power and reasonable priced.
Volkswagen TSI small petrol turbo engines definitely feel nicer with premium fuel. Idle smoother and rev higher before hitting the wall. 1.2tsi seemed to benefit the most, with idle rock solid on premium and a bit erratic on standard. 1.4tsi ran sweetly on both but slightly more top end with premium. Mpg about 10 percent higher on long trips but that didn't make premium cost efficient as mpg around town similar. So worth using if going on a long run but maybe not if driving around town. No effect on mazda 3 1.6 naturally aspirated. Direct injection engines seem to benefit more. Curious to know what difference performance diesel has because my diesel is running a bit rough at the moment with slightly jerky acceleration at lower revs.
My evo 10 uses Shell V power 99 ron. Was tuned on that specific fuel and makes 385bhp with 3 port, calibration and decat. Big difference from standard but costs a fortune to run!
Well, you have some serious flaws in your tuning as with E85 you could add some 40-70hp ... Evo X E85 conversion is easy and with normal average upgrades you can easily hit 400-430hp
@beebo : My M140i is running 455bhp/634nm and was mapped specifically for V Power 99. I would never risk running it on 95, it would probably eat itself. @J Karra : Don't assume everyone who comments lives in the US, we don't get E85 in the UK.
@@DjNikGnashers didnt know that UK really dont have E85...strange Indeed. And what comes to US of A with E85, they just waste resources as most E85 is made from corn...here in Finland E85 is made from communal waste and wood pulp leftovers meaning ethanol is made 100% from waste, not from corn (usa) or sugarcane(brazil)
@@jkarra2334 Ah that is interesting J Karra, thank you. I wish we could get E85 here. People use methanol tanks to get more power over here which works very well.
it's worth it if your timing isn't getting late - you will feel it on pedal response as deprogresive and somehow diesel like, on carburetor motorcycle bad fuel was giving non-linear response kicky at around 20% trothle load impossible to catch and lots of deposits on sparkplugs (the slight power increase was probably due to rich mixture for that fuel considering wasn't injector and detonation avoided because the compression rate it's low on that old engine).
@@frymate1261 Something like 80% of the cost of fuel is taxes so if they want the price to go down then they should probably stop meekly accepting the whipping they're getting.
This is nearly 20 years old now! Hence those lovely 90p per litre prices! If the car is mapped to run on higher octane, the bigger the difference, if not, use 95. I only use V power, Momentum and Supreme, never used std 95 in my car as it's mapped for it.
What about diesel? I do see some petrol stations the sell "premium" or "racing" diesel Tested that and i did feel that under load the engine was running a bit smoother, fuel mileage was the same. Maybe it cleaned the injectors a bit.
I've noticed on my remapped diesel there's no black smoke whatsoever with Esso's premium diesel, with a few puffs of black here and there on standard fuel
My diesel produces no smoke at all thanks to dpf and a whole load of environmental stuff. However that stuff feels like it's getting clogged up and not the dpf which regenerates automatically and I have ob2 reader that tells me what state that's in. My acceleration though feels jerky at low revs and running a bit rough with more noise. I'm thinking clogged injectors? Do you feel it's worth trying some good quality premium diesel fuel for a few tanks?
@@paultasker7788 I had my dpf removed and it was clogged badly, it might be the same in your case. I had some injector issues causing similar symptoms to those you mentioned, mainly cold start roughness, smoke and clattery engine sound.
You all in the UK are lucky. Regular unleaded is 95 RON in the UK which is equivalent to 91 AKI which is premium on the West Coast! Granted, here on the East Coast we do get 93 AKI premium which is 98 RON, and you all pay an awful lot more gas than we do in the US.
Notwithstanding the slight power loss, can the Impreza WRX run on RON95 long term without engine damage? Thank you to all replies and advice/suggestions 👍 🤲
I feel the same in my M3. If I can't get Optimax then it's just a splash-n-dash. Additionally, I believe Optimax improves the performance lifetime of the engine, my M3 was still making book figures on the dyno after 140,000 miles. That's not too shabby for a 20 year old car. I believe this is because it is serviced religiously, I use decent synthetic oil and I run Optimax 99% of the time.
@@ExMachinaEngineering With that sort of thinking you'll be out of pocket tens of thousands in repairs constantly. Those sensors are there for EMERGENCY not to be used every single time the cylinder fires. Additionally there is only so much timing the ECU can do automatically before it hits a limit where it can't retard timing anything and bang pre-detonation. bye bye ringlands and or cracked heads
@@Kilrathal Fancy fuel and fancy oil may be pricey. But they're a heck of a lot cheaper than repairs to a fancy engine! My Vauxhall handbook specifically warns against using lower octane fuels.
I thought these fuels just basically had 'redex' added to them to clean the engine. I know my car hates supermarket fuel. And I've heard other people say it's crap and not to use it.
My parents paid off the mortgage in 10/15 years time, I will need 30 years. Wages are ridiculous compared to prices and rich people are richer than ever. When people will understand the rich are the ones to blaim!, not inmigrants. Why nazis are gettin votes when they just blaim the poor inmigrants, the mansions and yatchs are the ones need to be burned down! STOP CRIMINAL CAPITALISM!
@@JP-xd6fm my mortgage is 40 years. I also hate rich and the politicians who protect them but its also hard to be pro-immigration. In the last 15 years we have taken in millions of people which have increaded the demand for houses which results in house price inflation. Whilst simultanously under cutting british workers, driving wages down. The result= lower wages and higher house prices. Immigration is terrible especially when they are unskilled.
The higher the octane the more pressure it takes to ignite it and a high-compression engine needs that or you get pre-ignition. Even 91 octane sometimes is not enough for some engines and a racing fuel of 100 or more octane is needed to withstand the high pressure without igniting prematurely.
Tis isnt quite the full story, its important you use the fuel your manufacturer recomends. Your cars ecu will be tuned to that type of fuel and thats where its gonna run the best
5 bhp gain over 172bhp standard is 2.9% improvements. You probably won't even FEEL that. A good or bad day will have a bigger effect! And that is cars that might be able to handle it. If you drive an economo car you get absolutely nothing out of it. I guess the cleansing additives for once in a while premium run will keep your engine a little bit cleaner. As they say, the reason High Performance cars REQUIRE Performance fuel is because, they are high performance engines. Most engines are a lot more relaxed!
Long and the short of it is you need to have your car tuned for it. On a properly built car a water methanol kit will turn 95 octane go 116 octane and you'll get about a 20% performance increase on just the fuel. Its the same idea as nitrous injenction. 97 compared to 95 has the same effect just with way more limited effect (again, if tuned for it). You also get anti knock properties and cleaning agents. No point unless you have a performance car set up for it. Note, some factory cars REQUIRE 97 or 98 over 95. No ifs buts or maybe's.
My mate worked at Fords around the time this was made, he had a mk1 focus 2.0 we were messing around and you could set the engine to only use higher octain fuel. After this it really made a difference and increased the top speed which was quite surprising.
This is an old test carried out in the usual fifth gear half assed way, it totally depends on how a car manufacturer has mapped the engine as to if you get any benefit, modem cars can even cap peak power and torque to protect the drivetrain or as in many cases the manufacturer sells the same engine with a lower powered tune. Try a few tanks in your car if you notice a low to mid range improvement in torque carry on. Be aware that v power has become a rip of in many uk garages now with the price difference circa 20p a ltr
That's all well and good if you want to go fast but what if you want to get the best MPG? Also, what about premium diesel? My guess is that stuff is basically snake oil so people with diesel vehicles didn't feel left out
Agreed, feeling absolutely disgusting and disappointed with the state this country has become, especially since Thatcher onwards, the motorist pays for this country as the government bleeds us all dry as usual
Wow unleaded petrol @90.9p per litre back then. These days it is so expensive running a car so have to restrict the amount of miles I do. Over 40p a litre dearer in 2024.
@@farvatron i had no idea. But then how come when they announce the cars official figures they'll still use bhp. Like they'll say the gti mk5 is 200bhp and that's just like regular horse power figures measured at the engine, right?
@@King-Gilamashur2758 yeah it's super annoying hey. I think Americans etc just use the term bhp Willy nilly! It's BRAKE horse power, like as in power at the hubs...
@@subhan7782 ron95 i get an average of 540km distance on the highway that is 200kmh speed average....while on ron97, i get average of 648km distance on the highway that is 200kmh speed as well
@@bEEBO178 no. It’s actually better for your engine as it’s a better quality of fuel. Premium cars need premium fuel. My BMW only gets BP or Shell Vplus.
2:53 Come to my country (Malaysia) and you regularly see people with economy cars like Perodua Viva or Perodua Axia filling up with high performance fuel. God knows how much I stumped with such stupidity. 🤦♂️🤦
I always use no ultimate . My first car the manufacter suggested it need 98 Ron and my current car is 2 a performance car but can run 95 Ron, but I still use 98 Ron . Its cleaner and better combustion.
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The price per litre on the board 😂 this must be a history documentary lol
Given the time that was filmed, it may as well be 😅
Cheapest I remember seeing it was 99p around 11 years ago lol
@@aleddavies770 you could get it for 99p/ltr at supermarkets around July 2020.
I paid 1.60 yesterday
I saw it around a pound when covid was at its worst, its 145ish now January 22
I've kept track of the real consumption of my car for 2 years (around 80 tanks) and tracked the difference between 95 and premium (almost always Shell V-power) and there is 0.5% difference between them - well within the margin of error of the pump or temperature differences when filling the tank. We all know that high octane has a purpose in more highly tuned applications but fuel economy is not the main benefit in most vehicles.
It completely depends on the engine as to what octane fuel it should use . The Subaru has higher compression and thus needs a higher octane to run properly. If you don’t us 99 on a ej257 it is going to start running lumpy
People like the idea of doing something that gives them more power. Even if it's only measurable in their mood, and not the horse power or fuel consumption.
@@TychoRasch modern engines can measure if they start to knock ( self ignition of the fuel ). You do not want the fuel to ignite itself. So you want high octane or lower compression.
Modern gasoline engines can use 95 octane and above. BUT, many, like in my car, are made for 98 Octane ( 200 hp ).
However, you CAN use 95 Octane. Because the engine has piezo sensors to recognize knocking.
On 95 Octane the engine WILL start to knock. The sensor recognizes it and the ECU is lowering boost pressure etc to prevent the car from knocking.
What does that mean? You get less efficiency and 185 instead of 200 hp on 95 octane with many modern engines.
So it is far FAR FAAAAAR more than just the "mood". It is more than 10% difference in total.
@@dom3827 you're arguing air here. I thought it was understood you put in at least the minimum required fuel grade.
Of course putting in the wrong fuel (grade) will have adverse effect, no one here argues against that.
@@TychoRasch i think its nessessarry to tell because manufracturers nowaday advertise 95 octane, but 98 is adviced. At least in germany. Not everyone knows the fact that this actually decreases advertised hp.
If the car was designed to run on premium fuel it is more likely to loose power with cheaper, low octane fuel. The reason for this is that most cars today have a knock sensor, and if it detects knock it will reduse ignition timing and hence reduce power with the cheaper fuel in it. If a car was designed to run on cheaper fuel in the first place, there will be no gain with high octane fuel. It won't compensate for the more premium fuel and advance the timing, it will just run the standard map. You may even loose power, as the higher octane fuel is less likely to self ignite and may take longer to ignite than the regular fuel. High octane fuel is more knock resistant and allows the engine to have higher compression and more advanced timing, which gives the engine more power. So upgrading the fuel alone in a car that is designed to run on lower octane is a waste of money, simple as that. Some older vehicles have a switch where you can choose if you are going to use low or high octane fuel depending on availability. What this switch does is either retard or advance the timing, based on which fuel you are going to use. The advanced timing is what gives you power and higher octane fuel is what makes it safe to do so. Otherwise it would self ignite, overheat and possibly melt a piston. Much like a lean mixture would do.
Good for bikes with aftermarket endcans, makes them pop like mad
That's it then, ditching BP and moving to Shell for my Tuned TT
I'd like to see them to efficiency with the E10 fuel that we are forced to buy, my fuel economy has dropped significantly, over 6%
But the octane number has increased a bit due to ethanols high octane number of 104
@@THe9-3MAnIaC but my efficiency is down, I don't care what the octane number says, just what happens in practice.
@@RichardEnglander The efficiency is increasing a little bit, but ethanol has 30% less energy than petrol, but it's more effective with ethanol overall
@@THe9-3MAnIaC but thats not what I see, my MPG has dropped with E10.
E10 can wear the valve seals and damage the fuel pump. The extra ethanol is detrimental to perfomance unlike fuel additives that have ethanol plus some other ingredients and are purely meant for short-term use to clean the engine.
Do a new video with current fuel types/brands.
With standard petrol now E10, advanced E5 fuel might actually a bigger performance difference.
with a turbocharged engine you can feel the difference at acceleration.
It does make a difference even in a Prius 👍
A4 1.8T big improvement
I did feel a slight improvement tbh, does it do the same for supercharged engines?
I drive a vw scirocco R it's tuned by vw to use high octane fuels. Using standard unleaded will damage it. It's also 5% ethanol compared to the new e10 so it's well worth the extra money
2017 civic coupe ex t 6 speed with shell v power amd no mods and I can give a 10 gen SI a very very close run. Premium fuel does indeed help alot.
Imho the greatest benefit is the cleaning effect! I really think that engines live longer when you always buy ultimate. So in an older car where the engine was dirty inside and gets clean it will also produce more horsepower (at least in comparison to before)...
Shell V-power diesel is my second choice for a Mercedes 250CDI. Total Fina is number one. The car runs quieter and smoother with the best mileage. My friends that have tried it and paid attention agree for their diesels. For gasoline, I have not noticed a difference between fuels in my other car's running character, a VW Golf 7.
Optimax has been changed to v power
BP call their premium fuel 'Ultimate'.
Since we're stating the obvious.
I get this, if you have a tuned sports car ie like the impreza and above cars the high octane fuel will work but put in a bog standard car ie Ford fiesta then its completely useless
Great upload 👍
They should have tested with a supermarket own brand 98 Octane though!
Iv got a vectra Sri 1.8 with pipercross air filter and remap, tried momentum and the car developed a misfire so I switched back to vpower. Used vpower for years and in my opinion it’s the best fuel, better mpg and more responsive and smoother running engine, well worth the extra wedge if you can afford it.
I have fiesta ecoboost and was wondering whether 99octane is worth to use. Thanks for clarification. 😂😂😂
@@ahmetsahin7171 Hi, B-Max EcoBoost owner here. It definitely runs better on 98 octane than 95.
I used to have an STi. Drank V-Power for fun, ran like crap on 97 Octane BP or Texaco crap though, very sensitive. Now I run a Fiesta ST and have a REVO map. I can set it for cheap 95 fuel but if I can use Tesco 99 Momentum. As good as V-Power and reasonable priced.
Volkswagen TSI small petrol turbo engines definitely feel nicer with premium fuel. Idle smoother and rev higher before hitting the wall. 1.2tsi seemed to benefit the most, with idle rock solid on premium and a bit erratic on standard. 1.4tsi ran sweetly on both but slightly more top end with premium. Mpg about 10 percent higher on long trips but that didn't make premium cost efficient as mpg around town similar. So worth using if going on a long run but maybe not if driving around town. No effect on mazda 3 1.6 naturally aspirated. Direct injection engines seem to benefit more. Curious to know what difference performance diesel has because my diesel is running a bit rough at the moment with slightly jerky acceleration at lower revs.
@@jthisyear9004 nope :(
@@jthisyear9004 alright
My evo 10 uses Shell V power 99 ron. Was tuned on that specific fuel and makes 385bhp with 3 port, calibration and decat. Big difference from standard but costs a fortune to run!
Well, you have some serious flaws in your tuning as with E85 you could add some 40-70hp ...
Evo X E85 conversion is easy and with normal average upgrades you can easily hit 400-430hp
@beebo : My M140i is running 455bhp/634nm and was mapped specifically for V Power 99.
I would never risk running it on 95, it would probably eat itself.
@J Karra : Don't assume everyone who comments lives in the US, we don't get E85 in the UK.
@@DjNikGnashers didnt know that UK really dont have E85...strange Indeed.
And what comes to US of A with E85, they just waste resources as most E85 is made from corn...here in Finland E85 is made from communal waste and wood pulp leftovers meaning ethanol is made 100% from waste, not from corn (usa) or sugarcane(brazil)
@@jkarra2334 Ah that is interesting J Karra, thank you.
I wish we could get E85 here.
People use methanol tanks to get more power over here which works very well.
Might be a sst
Tesco momentum 99 is a good performance fuel, one of my cars is mapped to use it and is noticeably down on power if I use anything else.
it's worth it if your timing isn't getting late - you will feel it on pedal response as deprogresive and somehow diesel like, on carburetor motorcycle bad fuel was giving non-linear response kicky at around 20% trothle load impossible to catch and lots of deposits on sparkplugs (the slight power increase was probably due to rich mixture for that fuel considering wasn't injector and detonation avoided because the compression rate it's low on that old engine).
Could that garage be any tighter to get into ?
0:20 90.9 Per Litre !!! 😲
I remember the uproar when it reached a quid
That is 1.35 now with inflation
@@frymate1261 Something like 80% of the cost of fuel is taxes so if they want the price to go down then they should probably stop meekly accepting the whipping they're getting.
posted last year i almost thought it was made in 2020 until he mentioned the cars being new
Now 146p in my area...for the cheap stuff. Consumers need to stand up and tell the government we won't accept these prices
This is nearly 20 years old now! Hence those lovely 90p per litre prices!
If the car is mapped to run on higher octane, the bigger the difference, if not, use 95.
I only use V power, Momentum and Supreme, never used std 95 in my car as it's mapped for it.
I have been looking for this info for a long time.
Thank you
Wow look at those fuel prices 😢
90p for a litre. I filled up for 160 today.
It was about £1 per litre 14 months ago so not that impressive.
@@nonamenogame6276 yeah for about a week
@@pb7870 either which way at least someone is observant.
What about diesel?
I do see some petrol stations the sell "premium" or "racing" diesel
Tested that and i did feel that under load the engine was running a bit smoother, fuel mileage was the same. Maybe it cleaned the injectors a bit.
I’ve got a 320D
When under hard acceleration using premium fuel definitely helps at low revs
The real advantage of premium fuels is the better detergent package
In a subaru, it helps with engine knock especially.
I've noticed on my remapped diesel there's no black smoke whatsoever with Esso's premium diesel, with a few puffs of black here and there on standard fuel
My diesel produces no smoke at all thanks to dpf and a whole load of environmental stuff. However that stuff feels like it's getting clogged up and not the dpf which regenerates automatically and I have ob2 reader that tells me what state that's in. My acceleration though feels jerky at low revs and running a bit rough with more noise. I'm thinking clogged injectors? Do you feel it's worth trying some good quality premium diesel fuel for a few tanks?
@@paultasker7788 I had my dpf removed and it was clogged badly, it might be the same in your case. I had some injector issues causing similar symptoms to those you mentioned, mainly cold start roughness, smoke and clattery engine sound.
@@drewhender3999 how did you fix the injector issues?
@@paultasker7788 Very expensive replacement of all 4 unfortunately 😕
@@drewhender3999 oh dear
You all in the UK are lucky. Regular unleaded is 95 RON in the UK which is equivalent to 91 AKI which is premium on the West Coast! Granted, here on the East Coast we do get 93 AKI premium which is 98 RON, and you all pay an awful lot more gas than we do in the US.
Notwithstanding the slight power loss, can the Impreza WRX run on RON95 long term without engine damage? Thank you to all replies and advice/suggestions 👍 🤲
The difference is obvious in my Suby. Really upsets me when I need to fill up and they do t have 98 or 100.
I feel the same in my M3. If I can't get Optimax then it's just a splash-n-dash.
Additionally, I believe Optimax improves the performance lifetime of the engine, my M3 was still making book figures on the dyno after 140,000 miles. That's not too shabby for a 20 year old car. I believe this is because it is serviced religiously, I use decent synthetic oil and I run Optimax 99% of the time.
Just bought a GTI w/ Performance Pack and I'm feeding them V Power!
I run 100 octane (New Zealand) in my Audi S4 - can certainly notice a difference.
Would love another video on redex
You should be running 99 on that particular spec of Subie regardless. Running it on 95 will give you irreparable bottom end damage.
Any car after 95-00 has a knock sensor, so it will not be damaged when running lower octane fuels.
@@ExMachinaEngineering knock sensor can only retard the timing so much
@@ExMachinaEngineering With that sort of thinking you'll be out of pocket tens of thousands in repairs constantly.
Those sensors are there for EMERGENCY not to be used every single time the cylinder fires.
Additionally there is only so much timing the ECU can do automatically before it hits a limit where it can't retard timing anything and bang pre-detonation. bye bye ringlands and or cracked heads
They do that even on the correct fuel lol
@@Kilrathal Fancy fuel and fancy oil may be pricey. But they're a heck of a lot cheaper than repairs to a fancy engine!
My Vauxhall handbook specifically warns against using lower octane fuels.
How about using E10 any change?
Holy shit that's awesome! Thank you Tiff!
I thought these fuels just basically had 'redex' added to them to clean the engine. I know my car hates supermarket fuel. And I've heard other people say it's crap and not to use it.
What car do you have? Both my honda car and sports bike dont run any worse on asda or tesco fuel
3:25 Maximum bang.. Willy-nilly.. LOL :-)
Should try it now that e10 fuel has been introduced
Im so angry at the current prices. Life has never been harder. All the things that people had 20 years ago are too expensive now
My parents paid off the mortgage in 10/15 years time, I will need 30 years. Wages are ridiculous compared to prices and rich people are richer than ever. When people will understand the rich are the ones to blaim!, not inmigrants. Why nazis are gettin votes when they just blaim the poor inmigrants, the mansions and yatchs are the ones need to be burned down! STOP CRIMINAL CAPITALISM!
@@JP-xd6fm my mortgage is 40 years. I also hate rich and the politicians who protect them but its also hard to be pro-immigration. In the last 15 years we have taken in millions of people which have increaded the demand for houses which results in house price inflation. Whilst simultanously under cutting british workers, driving wages down. The result= lower wages and higher house prices. Immigration is terrible especially when they are unskilled.
very important but unique topic 👌👍
so it works best for turbocharged petrol engines, but what about turbo diesels or v8 petrol engines, any better?
Jeez,
How many times has this been reposted
The higher the octane the more pressure it takes to ignite it and a high-compression engine needs that or you get pre-ignition. Even 91 octane sometimes is not enough for some engines and a racing fuel of 100 or more octane is needed to withstand the high pressure without igniting prematurely.
I love tsts like this
I use shell V-power for my M240i, but Tesco premium has even higher RON/octane so will that be better ?
I think V-power has some other benefits that Tesco premium probably won't. Im not 100% on that but yeah
Tis isnt quite the full story, its important you use the fuel your manufacturer recomends. Your cars ecu will be tuned to that type of fuel and thats where its gonna run the best
Momentum isn’t as good, Tesco’s are a supermarket not an oil company and the fuel isn’t as good. Cheaper yes but not as good.
@@kristianspencer1978 Momentum 99 is a different story, lots of people prefer it to V Power
@@kristianspencer1978 they're also not a computer company but they sell laptops. Ridiculous comment.
Pump gas isn't performance fuel. Use the gas your car's engine is rated at. You can find it in the owner's manual.
Can’t believe we have e10 now for standard unleaded 😣
but E85 makes your car go fast, so why would E10 be bad?
@@TruthTortoise81 less energy Remember and higher fuel consumption?!
5 bhp gain over 172bhp standard is 2.9% improvements. You probably won't even FEEL that. A good or bad day will have a bigger effect!
And that is cars that might be able to handle it.
If you drive an economo car you get absolutely nothing out of it. I guess the cleansing additives for once in a while premium run will keep your engine a little bit cleaner.
As they say, the reason High Performance cars REQUIRE Performance fuel is because, they are high performance engines. Most engines are a lot more relaxed!
What about the diesel supermarket and expensive petrol station what difference
Long and the short of it is you need to have your car tuned for it.
On a properly built car a water methanol kit will turn 95 octane go 116 octane and you'll get about a 20% performance increase on just the fuel. Its the same idea as nitrous injenction.
97 compared to 95 has the same effect just with way more limited effect (again, if tuned for it). You also get anti knock properties and cleaning agents.
No point unless you have a performance car set up for it.
Note, some factory cars REQUIRE 97 or 98 over 95. No ifs buts or maybe's.
My mate worked at Fords around the time this was made, he had a mk1 focus 2.0 we were messing around and you could set the engine to only use higher octain fuel. After this it really made a difference and increased the top speed which was quite surprising.
My left ear had a great time listening to this video
Has a similar test been conducted comparing diesel fuels?
It only make sense with turbo charged engines, with a optimized tune based on premium petrols.
I did find using Shell VPower Diesel I did get between 25 and 30% better mpg.
do you work for shell?
those numbers seem much too high, I think on test they 5th gear said it was 10% at most
I’ve tried but don’t really notice the difference apart from it being slightly quieter
@@theofficialstig No I don't. However, over 80% of my driving is motorway keeping within the speed limit. Which might explain it.
BP fuel is better for MPG
This is an old test carried out in the usual fifth gear half assed way, it totally depends on how a car manufacturer has mapped the engine as to if you get any benefit, modem cars can even cap peak power and torque to protect the drivetrain or as in many cases the manufacturer sells the same engine with a lower powered tune. Try a few tanks in your car if you notice a low to mid range improvement in torque carry on. Be aware that v power has become a rip of in many uk garages now with the price difference circa 20p a ltr
1:02 scraped that. Ouch!!
That's all well and good if you want to go fast but what if you want to get the best MPG? Also, what about premium diesel?
My guess is that stuff is basically snake oil so people with diesel vehicles didn't feel left out
Agreed, feeling absolutely disgusting and disappointed with the state this country has become, especially since Thatcher onwards, the motorist pays for this country as the government bleeds us all dry as usual
These are really old videos, where are the new videos at?
If you look closely in the title you'll see it says "Classic"
I use the Shell V-Power Nitro+ exclusively in my Nissan 370Z.
Wow unleaded petrol @90.9p per litre back then. These days it is so expensive running a car so have to restrict the amount of miles I do. Over 40p a litre dearer in 2024.
You failed to mention what fuel is recommended by the manufacturer for each car
isn't the gti 200 bhp?
They're measuring power at the wheels not at the engine like manufactures claimed figures do
@@OwainF I get it but shouldn't they then say whp instead of bhp?
@@King-Gilamashur2758 in the UK bhp means whp
@@farvatron i had no idea. But then how come when they announce the cars official figures they'll still use bhp. Like they'll say the gti mk5 is 200bhp and that's just like regular horse power figures measured at the engine, right?
@@King-Gilamashur2758 yeah it's super annoying hey. I think Americans etc just use the term bhp Willy nilly! It's BRAKE horse power, like as in power at the hubs...
Yes, performance gains are justified for Impreza WRX. But more importantly, will long term RON95 fuel usage damage the Impreza WRX (UK-GDA) engines? 🤷
If they didn't..... They do now my porsche cayenne has vastly better mpg when using 99 E5........ The new E10 petrol it drops significantly
Ahhh those were the days...0.94p🤣🤣 I still remember when it was 0.65p once
yea but then Tony Blair took one look at Mr. Mondeo man and said, I'm going to bleed you fucking dry
Any high performance car I’ve owned has been ran on 99. Any normal car gets pump 95.
my e36 runs way better with premium fuel...
Or is it so you think
@@subhan7782 ron95 i get an average of 540km distance on the highway that is 200kmh speed average....while on ron97, i get average of 648km distance on the highway that is 200kmh speed as well
If it hasn't got a turbo its purely placebo effect and in your mind.
If it’s not turbo charged, it really doesn’t 😂
@@bEEBO178 no. It’s actually better for your engine as it’s a better quality of fuel. Premium cars need premium fuel. My BMW only gets BP or Shell Vplus.
Ah back when Fifth Gear was worth watching
I heard that, the 2002 Celica GT needs to run on premium gas becuz the engine doesnt respond very well
It's right.
Here just for the subaru 👍
America and I run the highest we have here which is 93 in a 6.2 liter v8.
Look at the price of that fuel………..😣 the good old days
2:53 Come to my country (Malaysia) and you regularly see people with economy cars like Perodua Viva or Perodua Axia filling up with high performance fuel. God knows how much I stumped with such stupidity. 🤦♂️🤦
Repsol is First Shell is second Cepsa is 3° position and BP is last
Well sez you got to use premium fuel in all turbo
It's a shame we don't have E85
I thought he was wearing sunglasses for a moment lol
Drink 20 cans of red bull and then lids in your tank, it will super clean your dpf #Facts
90p a litre back then!!!
I always use no ultimate . My first car the manufacter suggested it need 98 Ron and my current car is 2 a performance car but can run 95 Ron, but I still use 98 Ron . Its cleaner and better combustion.
Bp ultimate*
Vpower is 99.👍
Anyone felt a difference using v power in a yaris t sport 1.5
Wasting your time and money on performance fuel for a yaris buddy.
@@bEEBO178 it's not just a yaris. Different car altogether.
And this is why I use v-power today
Series 8 of Fifth Gear, first broadcast in 2005, Jon Bentley tests a range of performance fuels to see if they really do work
I run my dirt bike on shell v power i want to give my bike good fuel to make it last as long as possible the new E10 fuel isn't good for bike engines.
Probably makes a bigger difference now using super unleaded compared to the e10 rubbish
Todays show was sponsored by shell
Ahh, petrol at 90.9 p per litre, or the good old days as I like to call them.
I use v power diesel
Pool brits, who isn’t able to get the delicious octane 100
It's not because the additives, it's because the octane.
Which is added in woth the additives lol
My car engineer teacher called this BS because Volumetric Efficiency doesn't change, so you can't make more power :D:D:D He was a real idiot anyway.
Ran my E92 M3 for a couple of months on super ran rough AF normal fuel was better
Around town? Supermarket bottom of the barrel.
Track? Buy the best one
90p per litre?
Now 1.5p
Who said that the government makes life easier for people?
Why do I think of a raccoon now?
90.9p per litre 😢
These people don't know what they're doing, impreza wasn't even half way warmed up to operating temperature
90p a litre hahahaha
You always use the gas you're car is engineered for