2.5ers, what gas mileage are you getting?

[Coop'sCoupe]

Last time I filled up, I only got 22mpg. WTF, it's possible I got so low because my front tires were under-inflated. Also I've been getting about 480-500 miles till fillup. All that I changed on my car was the wheels, I have 18"s with 245/45/18 tires.

[coderedk]

I have 19's And I get 19.5 miles to the gallon I think there is something wrong with my engine it's always been low even when I first got it I got like 23.5 mpg

[chiapetchua01]

holy smokes i average 28.2

[JDRosenberg07]

My computer says I get anywhere between 28-29mpg but by my calculations I get about 27mpg. I do probably about 65% or so of hwy driving tho

Mpg can vary a lot when you put new wheels on. Coop do you know how heavy your wheels are? A few l s makes a big difference when it comes to wheel weights.

It also depends on how hard you push it and if you do a lot of city driving.

[NJAltcoupe812]

I get around 33mpg 550 miles to the tank. Mainly highway driving. I have 19's

[jrock824]

Before I start moding my car I got around 29-31mpg 550 per tank but I was doing longer drives on hwys for work. Now I get around 21-23 mpg 400 per tank after mods with more city driving. Idk what to blame mods or city driving.
Modified by jrock824 at 4:59 PM 9/7/2009

[Heels1010]

i average 25mpg with 19" rims and lowered

[Mr. Music]

About 24 mpg on Costco regular gas, 100% city driving.

[Rmuth25]

22 mpg. I say probably 80 percent city driving/I like to go fast.

[Ricko]

I drive a 2.5 with K&N intake, Nismo Exhaust, and 19' Rims. I saw my mileage always varies. Before mods,

First bought the car, 18mpgStopped driving crazy, 24mpg-28mpg62 mile commute, 30mpg (at 75mph)Trip to Vegas none stop, 35mpg (at 65mph)

After mods,

Started, 21mpgTown, 23mpg62 mile commute, 25mpg (at 80mph)

Total average = 25.4 mpg (before and after mods)

Best I can give you

[PHENOMenalVinyl]

I have 19's And I get 19.5 miles to the gallon I think there is something wrong with my engine it's always been low even when I first got it I got like 23.5 mpg

bro u have heavy azz 19's lol wen i had my g rims i got worse mileage than the current ones.

i get like 19-22 av bc i dont drive alot of highway if its just city i get like 17 but i drive like an ***hole all the time

[Stumpjumper]

28 - 30 mpg with stock wheels...I think they're a bit underinflated at the moment. Summer gas sucks here in ATL too, not sure about other places

[turbocoupe]

Have got as low as 26.17 and as high as 29.57 MPG. I have been getting 27.5 to 28.5 MPG the last couple of fill ups. I have stock wheels and tires and I drive about 60% Highway. When I replace my wheels I am going to get 17’s with 50 series tires. This will keep the tire diameter about the same as stock. Will also keep down un-sprung weight. I will reduce the wheel well gap by lowering the car.

[2008AltiCoupeDan]

been doin the highway the past week- even sent a pic to PhEnoM an Dangeris showin 36.2 mpg - i think its more at 34 but w/e lol thts goin 72.2 mph a constant 2 hours lol

anywho- i have 17's tht weigh less than stock, and everything in my sig. woot lol

[Rob.Vegan]

I get about 380 miles to the tank.

I used to be up in the low 400's but I drive a bit more aggressive now

[BROSE391]

I got beefy 18s 8.5 and 9.5 rear...255/45/18 tires.

27.5-32MPG I almost get better gas mileage.... somethings gotta be wrong, but i was told the tire sensors re-calibrate after 30mi??

[michaelthepsycho]

I get from 23~24 city driving with intake / exhaust / bullydog and light 17" Enkei's. I do go pretty fast though...

[JDRosenberg07]

somethings gotta be wrong, but i was told the tire sensors re-calibrate after 30mi??

Tire sensors?

No when you change out your wheels and tires, if they are not the exact same diameter then your speedometer will be slightly off. And it doesnt re-calibrate itself.

Right now according to a tire size calculator speedo is reading about 3.4 percent slower than you are actually going. So when your speedo say 60mph your actually going 62mph.

http://www.miata.net/garage/tirecalc.html

That could be why your mileage may be off. do a manual calculation of your mileage based on yourmileage reading and the amount of gas you put in on your next fill-up. it should be accurate.

[D-Roll]

My gauge has been on 23.7 MPG, all city mileage. I get about 420 miles a tank on an average.