Well... well... i'll be dammmn... after averaging about 26-28 mpg.. for 4 tanks.. i pumped my tired up and did not top off and guess what? i'm at 240 with about 1/4 tank left.. the needle during the last half of the tank isn't going down as fast anymore.. before it shot down very fast.. but now it's going down really slow...
i hope to break 300 miles on this tank before the red light comes on..
normally about 1 gallon left.. that will give me an average of about 33mpg.. i'll be soooo happy.. it seems like once i hit 1k it started drinking less gas.. i'll report back when i hit red light.. it looks promising.. i'll take 33mpg anyday!!!

 

ok.. went to airport and red light came on at 299.. turned out to be 31.5mpg.. not 33.. but nice improvement over 26-28mpg.. hope to improve next time around!

 

just received fit at sport tire psi at 47 all around max psi on side wall states 51 max psi.

 

Yes, but on the doors it says 36!

 

Mine says 32PSI.

 

Just a word of caution about running your tires at 45+ psi. That is a lot of overinflation and you will have uneven tire wear (heavy wear in the center of the tread) as well as handling/braking issues, a harsh ride, and increased potential for road-hazard damage. I can't believe that you are saving enough on fuel to offset the cost of shorter tire life and increased wear on suspension parts. I run mine in the mid 30's, FWIW.

 

max psi aollowable on car is 51 as stated on tire. The car. is light wt so wear is not an issue. I dont live in NYC so roads are ok .

 

is the key to better gas milage. Max allowed is 51 psi

 

I haven't checked my OEM tire pressure until today (Fit Sport OEM wheels/tires). I saw the car get PDI'd...I basically bought it the day it came off the truck. Well, I found out today my tire pressures were 32 psi all the way around. Since max pressure is 40 psi, I'm having a feeling that's affected my gas mileage. Has anyone else played with the tire pressures and noticed any variations in mpg? I do mixed city/highway with the majority being city and I'm getting mid 20's.

I mounted up a set of 14" Civic steel wheels with 185/65/14 tires. I set all the tires to max 35 psi pressure. I'll post more mpg results after I fill up next and have a chance to observe.

 

i hate to say this but what is on the door for air psi is more for ride and safty than mpg just to give you an example the ford exploders they said 26 psi for the tires and had blow outs because of it and firestone took most of the blame just dont go over the max psi on the side wall and just to be safe at lest 2psi under it watch you tire wear see how they are wearing aligments will cut mpg as well as tire psi and tire rotation every 6000 miles will make you tires last longer if you want to know how i know i have been a tech for 13 years and i run a fleet shop and have save the company lots in gas

 

Has anyone changed their tires to a lower rolling resistant tire and see a increase in mileage?

 

What size tire/wheel did your Fit come with originally? I think mine is 195/60/16 or somewhere around there. When you calculate your mpg, you're going to have to adjust for the difference in tire size. Also, if your original set was 16 inch aluminum like mine, then the unsprung weight difference may also skew your results.

I know, nag nag nag! But just want to make sure you figure in the ratio difference (easy enough). It'll be interesting anyway!

 

Your dealer has never taken a physics class, huh? Or perhaps they're trying to make a quick buck...

The pressure of a gas changes based on temperature... Charles' Law

Don't fall for this bologna!!! Perhaps Nitrogen gas in tires has other benefits, but ALL GASES change in volume (therefore, pressure if confined to a set size space) based on temperature - so no pressure change due to temperature is NOT one of the benefits.

Sorry if someone already addressed this one - but that's just junk science right there.

 

Is that something like the untamed ornithoid? Only kidding!

 

There is an easy to get an approx. 80% nitrogen tire fill....use compressed air!

 

I think the big deal with the N2 fill is the lack of moisture, not so much the expansion rate of the gas. You might be shocked to see how much liquid water comes out of most commercial air hoses... Most of what I've read says that it's not really necessary for consumer automotive use, although I guess it's been used by racing teams for years. If they can tell the difference in 0.5psi change, it might be just the ticket for them. I certainly can't.

As soon as I could, I upped my tire pressure from the 32+/- it was delivered with to 38psi. I figure it's better for the short sidewalls with the roads around here, and the decrease in rolling resistance can't hurt. I keep our Pilot's tires at 36, so it's not really that high of a pressure. More than that I'm not really comfortable with except on the autoX course, as I know the pressure in our Pilot's tires really increases on long road trips. I saw over 4psi increase on our last spring break trip to CO on a cool day - not something I'd want to do on a hot day.

 

I don't think tire pressure makes THAT big of a difference. On "green" advice columns, they say the mileage improvement of an inflated tire over a deflated tire is 3%

Tips to improve your Gas Mileage

On a bike, where the tire pressure is much higher around 55-80psi, it makes a big difference. Trust me, I know. You can feel it. You actually have to pedal downhill if a bike is at 30psi. Plus,the higher pressure of bikes means it leaks more.

 

The air pressure listed on the side of your tire is NOT the correct air pressure for your vehicle. That number is the maximum air pressure for the tire.

 

the fit gets great gas mileage no matter what. as you said on the door the psi is for ride and safety.

what is more important?

ride and safety
or
a tad better mpg?



ps: addressing the 26psi for the ford. my ford econo van was 35-36. 26 must of been a mistake as thats makes no sense

anyone driving a fit with over 38 psi is asking for trouble

 

re: Fit410s

bored are we?

You do know that the last post before yours was 2 1/2 YEARS ago, right?

That being said... i'm going to sleep. ta ta!