Interesting tips. Slimmer tires (makes sense), reduced drag by removing wipers and antenna. Added front grill bypass. Swift lowering springs also a good choice. You could do a couple more things: 1) Add a skid plate for the whole bottom of the Fit (I've seen some premade out of thin steel for GD3). This will also decrease drag, significantly. 2) Lower weight. This can be achieved easily depending on how far you want to go. For example, removing sound deadening and glue inside the door panels. I've also removed my spare tire, tools, and rear headrests. You could go much further removing parts too but everyone's different. Also on reducing weight, the steel wheels you're using are 30lbs or so, if I remember correctly. Honda makes 15" wheels (Spoon), which are direct bolt-on and no spacers or nonsense to fit. These are 8-9lbs a piece and expensive. Enki makes RPF1s that are around that weight, maybe 10lbs each but offset and inner spacing is touch off. Lastly on weight reduction is the lithium ion battery. Thing weighs like 5 or 6 lbs but expensive
Take off front and rear bumpers, 30 pounds, front passenger and rear seat 120. Spare and jack 25 gas tank holds 60 pounds fuel running half tank saves you 30 pounds, carpet and sound deadening 10 to 15. Empty washer fluid reservoir 8 pounds, front brakes can be swapped to 1994 honda civic vx rotors 9.4 inch 4x100 diameter compared to oem 10.2 about 3 pounds rotating mass, calipers can be swapped also they are direct bolt up, to keep braking optimal you should try to achieve 2100 2200 pounds and could use crossdrilled and slotted versions with a ebc yellow or other street pad, the oem ge8 fits are from 2475 to 2600 depending on model and trans. Slim tires have less drag and a tire with 4/32 tread has less rolling resistance than a new tire say 10/32. Light wieght crank pulley non stop tuning 3.5 ponds rotating mass savings. If your in a cooler climate or during winter you could look for an a/c belt delete for winter and put back on for spring and summer. If you want to get more extreme you can buy an extra set of junk doors and gut all 4 and lexan them, you could save another 100 to 125. And still keep your factory doors in working order but that's obviously at your own risk.the idea of a full under car skid plate sounds good, improve intake and exhaust flow but do not open it up to much or you hurt intake velocity. Installl electronic speed govenor or pedal stop. There may be tunners for fuel economy aswell. Perhaps k tuner would allow you to change your rpm redline to under factory limit.
Awesome! I have this same Honda Fit wit a 5 speed manual trans, and I have done my own experimenting. When this is doable, I try to run with my AC compressor off. When doing this I experienced an efficiency gain of about 6%, since the motor isn't under the additional load, the gain is pretty consistent. I would entertain increasing the psi of my tires, but I would rather have proper traction over better fuel economy.
I squeezed 44 mpg out of mine by sticking to 70 mph, flat roads, a tailwind, 36 psi tires, 0w-20 fresh oil, and no front plate. That was measured pump to pump rather than the optimistic gauge in the car. I've also done wheel bearings, cv axles, and transmission fluid recently, so there's lower resistance in the drive train. My highway average sits at about 35-37 mpg on summer gas.
@@diamonddetails9445 If you drive a lot more in city stop and go traffic than highway, I think switching to a thinner oil like 0W-16 synthetic oil (vs standard 0W-20) will allow you to extract a little bit more efficiency out of the Fit's small engine.
46mpg at 53mph using EOC, overinflating tires, and gentle acceleration. 42-44 city just driving slow, DFCO to changing greenlights. Drive like there's an egg under the accelerator. I do not understand why people routinely do 70mph and expect to save fuel. Slow down. The optimal speed vs. mpg charts for most cars seems to drop off around 60-65mph.
Good tips - on my JDM Fit the fuel economy seems to worsen noticeably if you go much above 90 km/h (56 mph) indicated speed. 45 MPG is certainly achievable without any modifications at moderate highway speeds.
@@broganhogan3469 I've been using a Bluetooth OBD adapter with the Torque smartphone app, though my Fit has a very basic OBD implementation and provides no fuel consumption data. I have bought an MPGuino with a touchscreen from "glengineer" (Australia) but haven't got around to wiring it in yet.
What did you use for your headlight seal? The CRZ Undertray seems to be a clip in option that would give the Fit more of a flat bottom. Honda Insight 12+ LCAs are aluminum and drop about 10 pounds total for a Bolt on part if you find that a salvage yard.
hey man, the link to the spark plugs you posted are likely counterfeit spark plugs. please don't buy your spark plugs online, go to your local auto parts store, don't skimp on these parts, buy original.
Impressive gains and good tips! Though I am unimpressed with the factory mpg, I have multiple older vehicles (much older) that get significantly better fuel economy. I had been interested in buying one on the assumption that i would get 40-45+mpg and had come here to get reviews. I won't be buying one thanks for the tips though.
@@GrantAmannlike a 2001-2005 Civic HX stick shift or the 2015 trim line of the Elantra gets over 40mpg that's well over is epa mpg rating by just driving in eco mode
Interesting tips. Slimmer tires (makes sense), reduced drag by removing wipers and antenna. Added front grill bypass. Swift lowering springs also a good choice.
You could do a couple more things:
1) Add a skid plate for the whole bottom of the Fit (I've seen some premade out of thin steel for GD3). This will also decrease drag, significantly.
2) Lower weight. This can be achieved easily depending on how far you want to go. For example, removing sound deadening and glue inside the door panels. I've also removed my spare tire, tools, and rear headrests. You could go much further removing parts too but everyone's different. Also on reducing weight, the steel wheels you're using are 30lbs or so, if I remember correctly. Honda makes 15" wheels (Spoon), which are direct bolt-on and no spacers or nonsense to fit. These are 8-9lbs a piece and expensive. Enki makes RPF1s that are around that weight, maybe 10lbs each but offset and inner spacing is touch off. Lastly on weight reduction is the lithium ion battery. Thing weighs like 5 or 6 lbs but expensive
Take off front and rear bumpers, 30 pounds, front passenger and rear seat 120. Spare and jack 25 gas tank holds 60 pounds fuel running half tank saves you 30 pounds, carpet and sound deadening 10 to 15. Empty washer fluid reservoir 8 pounds, front brakes can be swapped to 1994 honda civic vx rotors 9.4 inch 4x100 diameter compared to oem 10.2 about 3 pounds rotating mass, calipers can be swapped also they are direct bolt up, to keep braking optimal you should try to achieve 2100 2200 pounds and could use crossdrilled and slotted versions with a ebc yellow or other street pad, the oem ge8 fits are from 2475 to 2600 depending on model and trans. Slim tires have less drag and a tire with 4/32 tread has less rolling resistance than a new tire say 10/32. Light wieght crank pulley non stop tuning 3.5 ponds rotating mass savings. If your in a cooler climate or during winter you could look for an a/c belt delete for winter and put back on for spring and summer. If you want to get more extreme you can buy an extra set of junk doors and gut all 4 and lexan them, you could save another 100 to 125. And still keep your factory doors in working order but that's obviously at your own risk.the idea of a full under car skid plate sounds good, improve intake and exhaust flow but do not open it up to much or you hurt intake velocity. Installl electronic speed govenor or pedal stop. There may be tunners for fuel economy aswell. Perhaps k tuner would allow you to change your rpm redline to under factory limit.
Well with your crazy mods it would also be advisable to remove the other 3 seats to reduce weight and see how much you can hypermile.
Covering the rear wheel wells like on a Prius would increase aerodynamics. Possibly vortex generators on the roof and removing the spoiler.
Awesome! I have this same Honda Fit wit a 5 speed manual trans, and I have done my own experimenting. When this is doable, I try to run with my AC compressor off. When doing this I experienced an efficiency gain of about 6%, since the motor isn't under the additional load, the gain is pretty consistent. I would entertain increasing the psi of my tires, but I would rather have proper traction over better fuel economy.
I squeezed 44 mpg out of mine by sticking to 70 mph, flat roads, a tailwind, 36 psi tires, 0w-20 fresh oil, and no front plate. That was measured pump to pump rather than the optimistic gauge in the car. I've also done wheel bearings, cv axles, and transmission fluid recently, so there's lower resistance in the drive train. My highway average sits at about 35-37 mpg on summer gas.
Highway miles?
Big deal.
It's the CITY MILES that kill ya!
Those are the ones that matter.
@@diamonddetails9445 If you drive a lot more in city stop and go traffic than highway, I think switching to a thinner oil like 0W-16 synthetic oil (vs standard 0W-20) will allow you to extract a little bit more efficiency out of the Fit's small engine.
I'd like to see what effect some air tabs would have as well as maybe a flatter underside?
46mpg at 53mph using EOC, overinflating tires, and gentle acceleration. 42-44 city just driving slow, DFCO to changing greenlights. Drive like there's an egg under the accelerator. I do not understand why people routinely do 70mph and expect to save fuel. Slow down. The optimal speed vs. mpg charts for most cars seems to drop off around 60-65mph.
What's EOC?
@@jeremywilliams8355 Engine off coasting
Good tips - on my JDM Fit the fuel economy seems to worsen noticeably if you go much above 90 km/h (56 mph) indicated speed. 45 MPG is certainly achievable without any modifications at moderate highway speeds.
@@thromboid do you have any mods to your JDM fit? I’m debating about a scangauge but they are kind of costly for me
@@broganhogan3469 I've been using a Bluetooth OBD adapter with the Torque smartphone app, though my Fit has a very basic OBD implementation and provides no fuel consumption data. I have bought an MPGuino with a touchscreen from "glengineer" (Australia) but haven't got around to wiring it in yet.
What did you use for your headlight seal?
The CRZ Undertray seems to be a clip in option that would give the Fit more of a flat bottom.
Honda Insight 12+ LCAs are aluminum and drop about 10 pounds total for a Bolt on part if you find that a salvage yard.
I had a 2000 Geo Metro 1.0 3 cylinder that averaged 47 mpg city and 52 mpg highway with no mods just being easy on the throttle.
Seriously,
More Honda Fit content...
PLEASE 🙏🙏🙏🙏🙏🙏🙏🙏🙏 🙏🙏🙏🙏🙏🙏🙏
Front and rear Undertray, smooth wheel covers, kammback
sweet vid! Thanks!
What percentage of tint do you have?
hey man, the link to the spark plugs you posted are likely counterfeit spark plugs. please don't buy your spark plugs online, go to your local auto parts store, don't skimp on these parts, buy original.
That's extreme, but good to know.
Just buy a prius. Your basically modding it to be fuel efficient like a prius.
Because Honda Insight and Prius you can't fit a chevy silverado engine and transmission in the back. The Honda Fit is a good parts runner car.
@@MyLifeThai371 plus you have to deal with prius batteries, engine burning oil, etc.
Prius is so boring. At least you can shift your own gears in the fit.
Prius have 2 engines to contend with electric and gas and both act funny when they get high miles on them. No thank you
Impressive gains and good tips! Though I am unimpressed with the factory mpg, I have multiple older vehicles (much older) that get significantly better fuel economy.
I had been interested in buying one on the assumption that i would get 40-45+mpg and had come here to get reviews.
I won't be buying one thanks for the tips though.
like what older cars?
@@GrantAmannlike a 2001-2005 Civic HX stick shift or the 2015 trim line of the Elantra gets over 40mpg that's well over is epa mpg rating by just driving in eco mode
The antenna removal is absurd.