07bluebaltx2

I was wondering just how accurate is the mpg economy guage for gas mileage? My guage has been reading around 22-24 mpg. But then I would reset it and it would go up to about 27-29 mpg. I dont know which I should believe. Then the next day it will go back down to 22-24. I dont even know why I am getting low mileage like this. I drive normally and dont have a heavy foot. I love everything about this car but the gas mileage. That is the only thing I do not like about it.

mkulrey13

iTrader: (39)

The longer it goes, the more accurate it is. Its decent.

REIGN SS

its more accurate then you think, but yes, the longer you use it without reset the more accurate it becomes.

kburgess04

yeah youll realize after you go about 30 miles it is accurate. when i baby my car i get 30-32. when i have a heavy foot i get 28-29. i calculated it by gallons of gas to the mileage ive went and it was within a half mile of accurancy. either your is fucked up or you beat the **** out of your car.

BriantheLion26

I reset mine after every tank. I hand check mine each tank and it is usually about 2 mpg lower than what the computer says. So for me, every time it reads high.

joe_coates87

well i beat on mine plenty and still get good i notice if you do alot of city driving you get lower i do alot of mixed and get 33 on average. when i went up north last summer (55 miles an hour all the way) i got 45

InfinityzeN

You have to give it time. Checking mine after every fill up and comparing it to pen and paper calculation, I'm within 0.5mpg with a lot of highway miles and within 0.2mpg with mostly city.

tru2nrtt777

iTrader: (1)

Wow, how the hell are you guys getting 45 mpg? I get about 37 highway.

InfinityzeN

If I am cruising at 55mph with the cruise control on, I'll get around 40~42mpg. But if I go up to 65mph, I only get 36~38mpg. Cruising at 75mph, I only get 31~33mpg. Found out all this when I did my cross country trip. It seems the sweet spot in 5th gear, at least for my car, is around 55mph.

City driving, if I can stay at 40~45mph, I'll get over 30mpg. Only problem is that I'm often stuck at 30mph, whick seems to eat about 5mpg from my average.

tonio5555

I have never reset mine, I've got 31,000+ miles on it.

Billig ss/sc

iTrader: (5)

I've never reset mine either and as of today with 10,7xx miles on her, I'm getting about 30.6mpg and it's only been going up lately haha

blackjack hotrods

mine was accurate within .06 on this last tank of fuel. I went 296 miles on 11.57 gallons in city driving and the readout was 25.5 and calculating ended up 25.58(the readout doesn't go to hundreds so I'd say it's right on the money).

Stopping and starting is what kills the mileage. Idling gives you 0mpg since you are using gas but not moving. When I take off, the instant reading is anywhere from 4-11mpg until I get up to speed. Those are the things that make the readings drop. Also in cooler weather you will get worse mileage since the cool air is more dense and the ecm will add fuel to keep the a/f ratio right.

Jn2

iTrader: (1)

i reset mine a couple months ago, and i do mostly city driving and get 27.9mpg, i was getting liek 24ish, but i changed the spark plugs, changed the fuel filter, theu some seafoam in the engine, and in the gas tank, and got back to normal

07bluebaltx2

No i swear I drive my car normally. I dont drive at hard at all. I do have an automatic tranny but still I should get better than 21-24 mpg.

Xavipheus

Yeah im with you on that man, Im in the same boat. Auto 2.2 and i cant get any higher than 25 no matter how much I baby it.

07SSCharged248

mines spot on just about every tank... i found it varies about +-1.5 mpg each tank..

joeworkstoohard

almost all cars are designed to get best gas mileage at 55mph, because thats where they are required to measure at. well, sort of, but that's the gist of it.

celicacobalt

man i have to fight to get 27mpg you guys are getting great mileage

07SSCharged248

i think with the new EPA MPG standards they measure at 65 now... dont quote me on that but i think thats the new mark...

joeworkstoohard

AFAIK, it's still 55, but you may be right either way, as speeds increase, fuel econ will drop.

Preston

I once hit 55MPG in-town...25 MPH in 5th gear...hahahah

campo165

i reset mine everytime I fill up, its about 2mpg more than what I actually get.

RedEcotecSS

i'm getting about 23mpg. usually have a heavy foot tho