I was just wondering if anyone averaging in the upper 30mpg range and above have intakes or exhaust systems? I know the main reason for getting those numbers correlates directly with driving style but I am curious at the same time if intakes and exhausts help all that much.

 

Highly Doubt it. You would have to tune your car to get the full effect of that. You would mostly run rich = less mpg's

I have no mods and typically get 40mpg = technique.

 

I have a homemade intake system.

Basically it is 2.5" PVC pipe, attached to a K&N cone air filter. I did reset my ECM.

You can see from my signature what my average fuel economy is. Plus - my economy keeps going up. I just like how it is able to breath better and gets warmer engine bay air. My last tank I got 42 MPG, and over 400 miles on one tank.

 

I typically get 38 on the dot. I have a fujita short ram intake, megan header, and mobil1 oil. I do drive alot of highway miles compared to city and i dont usually hurry to the speed limit. Just to give you an idea of my driving habits. Thats my secret none the less

 

to achieve very good mpg, you gotta pull the tricks out of your sleeve. draft semi trucks and such lol

 

that is exactly it.

on trips with mostly freeway, MPG is SO MUCH higher.

maintain a specific speed. don't accelerate and decelerate.

 

I'm all stock and I'm averaging from 35-39mpg and I not driving very conservative either. Today I manage to pull 39.2mpg. I got to 356.8 and filled with 9.094. So 356.8/9.094= 39.23. I have a 2008 fit sport manual with 45xx miles on it

 

I guess i could add that i am at 20,500 miles and i change my oil every 5K regardless if my MM is saying oil change or not. I know that synthetic lasts much longer then 5K but i like to change it more frequently just because. I guess im just wierd like that

 

weather and terrain play a BIG part in getting good mpg

 

I got 39MPG for the first time this week (38.8 to be exact). Before that, the best I ever did was 35.5mpg. I'm running on sticky Falken Azenis tires so I'm VERY happy with 38.8mpg! I just put in a Fujita SRI and Weapon*R headers last week, so maybe the boost in torque is helping my numbers. I definitely don't baby my car at all, plenty of WOT and I don't pay attention to cruising speeds on the highway. I'll give it a couple more tanks before I make any conclusions!

 

Driver's temperament plays an even bigger part. The only modification needed for higher fuel economy is to modify one's driving style.

 

A valium drip might help me get over 40. I get 38 with 2/3rds city and it requires almost a buddhist monk like mentality. Caffeine does NOT help!

 

Howdy,

To the original poster. My (our; the wife inclusive...) Fit is less than two weeks old and most definitely stock. The total mileage is about 1400 as of today. Right now we are averaging 32 city and 41 mixed highway/city at 80%/20% ratio.

BTW our Fit has a 5 speed manual.


Best Regards,

Landmizzle

 

i have a T1R chambered intake and still average 38MPG, or 41MPG if its a lot of highway.

 

Well, I know 38+ but I just got my fit....last sat. Filled up today and it came to be 31mpg about...long as the dealer filled it full. I've been in vtec a decent amount of time(3400+), but when I'm just driving it's 1500-3k.

that was about 1/3 hwy. at iono 65-75/80 most of the time

 

nope, no intake....no exhaust

 

Yeah there could be something to that, my car is tuned and my mileage is pretty good. I have a lead foot and I usually average around 33-35 in the city and just shy of 40 on the highway. This is with air conditioning ON btw. I love the way my car winds up now, sounds like a jet or something

I did a similar trip a while back and got 42-44mpg on the highway with considerably less mods. But my car was too wimpy to pass people, now that I have so much more power I find myself flying by everybody which probably contributes to the reason I have a 4mpg reduction for highway trips.

More details here if you want to read: https://www.fitfreak.net/forums/eco-...w-mileage.html

 

i did 42mpg on this tank. just SSI, megan axle back, tires inflated
to 35psi, and driving a gear lower than usual to keep rpm's higher.
a/c on pretty much throughout, 99% surface roads.


so, those of you running high psi is only making your ride
uncomfortable and dangerous to drive.

 

Look again my friend - 50+mpg, better handling, and longer tread wear at 60psi.

 

+1.

I'm not quite to averaging 51 MPG (I did 51 MPG for one tank)... but I've been managing about 47 MPG lately. And yes... better handling by upping my tire pressure. It's certainly not dangerous to drive with a higher tire pressure, so long as the pressure is kept within reason.

As far as comfort, you say upping tire pressure makes your car uncomfortable. I don't feel that in my car. HOWEVER... if you were after comfort, you shouldn't have bought an econo-box such as the Fit... perhaps you should have bought something like an Acura RL, or an Audi A8