Gas mileage!!!

[LoneRangers15]

I just calculated my gas mileage and it's only 10mpg. It is usually about 20mpg. Could a bent rim cause this? Also, my exhuast comes out in puffs instead of a steady stream. Could this have anything to do with this?

[99GrandAMSE]

... the exhaust comment sounds like you have a miss which would effect mileage :(

[logicman49]

I have an '03 GT 3400 and just started tracking miles per fillup. I'm getting around 120-130 miles. Now I know it's winter and that effects it, but does it use more gas when new? I really expected better. And I'm driving carefully because I'm in breakin mode, so it's not because I'm driving cuckoo!

[Y2KGAGT]

Originally posted by logicman49
I have an '03 GT 3400 and just started tracking miles per fillup. I'm getting around 120-130 miles. Now I know it's winter and that effects it, but does it use more gas when new? I really expected better. And I'm driving carefully because I'm in breakin mode, so it's not because I'm driving cuckoo!


Exact same thing happend to me just this past week.... I only got about 140 mpg :( I have yet to find the cause for this.

EDIT: :) yeah that was definately miles per TANK! lol... Thats not the first time I have said that. :P

[GAGTWI]

140 mpg? I wish:)

I really don't think the car being new would cause reduced mileage.

You should be able to get well over 200 miles per fillup. a 15 gallon tank by 20 MPG (low end) nets 300 miles per fillup if you push it.

[antirice]

cold weather plays a big factor in gas mileage, below freezing and above 90 make your gas mileage suck royally! its putting more stress on the motor

[ironray75]

Ha..I know about the extremes. I went from the 100+ heat from TX to 30 and lower in OH. Now that it is cold up here, I get about 10 miles a gallon. Normally I usually get about 14-16 if I am lucky so not to much to worry about yet!

[HighwayProwlerz]

City and Highway driving effects this too.... my 03 GT goes about 200 miles before it needs another tank of gas... I miss the days when I could go 350 per tank in my Escort... of course I also miss the days when $10 filled your tank!! Now it's like $35 - $40 (if you get the good stuff)

[Artic]

My 01 gt gets around 260 miles to a tank in the same climate as ironray.

[ironray75]

Wow, that must be nice. I am stuck getting 140 per tank. Maybe that cam-tower gasket leak is really killing my gas milleage!

[OhioGrandAm]

Originally posted by LoneRangers15
I just calculated my gas mileage and it's only 10mpg. It is usually about 20mpg. Could a bent rim cause this? Also, my exhuast comes out in puffs instead of a steady stream. Could this have anything to do with this?

:pontiac: At first my new GA was only getting about 20 on the highway but since its been 10,000 miles later it is about 30 on the highway. I only know the highway miles because that's where the car is 90% of the time.:D

[OhioGrandAm]

Originally posted by HighwayProwlerz
City and Highway driving effects this too.... my 03 GT goes about 200 miles before it needs another tank of gas... I miss the days when I could go 350 per tank in my Escort... of course I also miss the days when $10 filled your tank!! Now it's like $35 - $40 (if you get the good stuff)

I could go about 300 miles on a tank if I didn't fill my tank up. That is all highway miles. My gas milage sucked for a while. Just checked it when my car hit 10,000 miles and I get approx 30mpg. :pontiac:

[Chaotic Reality]

The most I've gotten out of a tank so far was 310...have only had the car for 3-4 weeks, so not too bad.

-Jon

[ironray75]

I remember that when I got my car, I put about 350 and up on a full tank of gas. Now I am lucky if I can go past 175. lol

[LargeFish]

You guys have got to be kidding! I get 400 miles to a tank, or very close to that. Makes more sense to state it as MPG though. Found my tire pressure real low on the last fillup and still got 26.2 MPG, 371.4 Miles, not quite down to vapors.

[martopg]

Originally posted by LargeFish
You guys have got to be kidding! I get 400 miles to a tank, or very close to that. Makes more sense to state it as MPG though. Found my tire pressure real low on the last fillup and still got 26.2 MPG, 371.4 Miles, not quite down to vapors.

That's not fair!!! My car gets 23.84 max, and that's like 90% highway... at least it's not 10mpg hehe

[Branderson]

I'm relieved to read this post and see othe GA owners that are having much worse problems than me. i thought there was a problem with my car or something. Late summer early fall my GA was getting 26mpg practically all city. On my last fill up, now that winter and snow have taken over, i got 18mpg. thankfully not as bad as others (10mpg).

[ironray75]

Haha.Don't worry. Just when you think you have hit rock bottom, just remember that there is always someone worse off. Look at me..Haha.j/k

[LargeFish]

On pure highway driving, I still get 30 MPG. Always have from the start.

Originally posted by martopg
That's not fair!!! My car gets 23.84 max, and that's like 90% highway... at least it's not 10mpg hehe

[TA^Guy]

Just something for people to remember...
It's winter, and in many areas that means a huge weather change.

Dropping down to low and sub-zero tempatures means many people warm their cars before going to work, which in turn will lower your gas-milage calculations. Also, another thing is snow. A car rolling down a clean roadway has less resistance on it than say one cutting though 4"-10"s of snow. On top of which you have tire spin, and then of course ETS (for those of us that have it) knocking back the timing. And of course we can not forget the obvious drop in air tempature. The IAT sensor reads in coming air temps and adjust the fuel enrichment. And we all know, cooler air carrys more oxygen. More oxygen requires more fuel, more fuel, less ecconomy.

[bclrk1]

i drive pretty much all highway and i get between 26-29 mpg, i usually get around 310-340 miles on a full tank of gas

[Mikep6128]

how do u get 10?

[OhioGrandAm]

(quote)"Just something for people to remember...
It's winter, and in many areas that means a huge weather change.

Dropping down to low and sub-zero tempatures means many people warm their cars before going to work, which in turn will lower your gas-milage calculations. Also, another thing is snow. A car rolling down a clean roadway has less resistance on it than say one cutting though 4"-10"s of snow. On top of which you have tire spin, and then of course ETS (for those of us that have it) knocking back the timing. And of course we can not forget the obvious drop in air tempature. The IAT sensor reads in coming air temps and adjust the fuel enrichment. And we all know, cooler air carrys more oxygen. More oxygen requires more fuel, more fuel, less ecconomy."(end Quote)

:woohoo: If my gas milage is down because of winter, I can't wait till summer. I live in Ohio and I am getting about 30 on the highway. :woohoo:

[Eldaron]

Whoa, I'm in Minnesota where it's been like 10-20 degrees all week, and I'm not getting crazily reduced mileage.

Are those of you getting shitty mileage running 5w-30 oil now that it's cold out? How often do you run a bottle of injector/fuel system cleaner through the engine? I've been regularly adding these about every oil change or every other, and my mileage has improved quite a bit since I first started driving my car.(Another 40 miles per tank)

The worst I've ever gotten with my 3400 was about 18.5, and that was all city while I would purposefully spin out on every corner in the snow. With about half highway, half city, I've been getting about 23.5 - 24 MPG, or 275 miles per tank when the light comes on. Most I ever got on a tank so far was like 340, and that wasn't quite all highway.

I work at a gas station, and the gas, being in undergroud tanks, doesn't ever get very warm, but I don't believe we use any methods to regulate the temperature. Therefore, I do believe that you would get more gasoline if it was colder outside like in the morning since molecules are generally closer together when things are cold. I'm not claiming to be right, but it makes sense, and I've heard the "fuel up in the morning" advice in various credible (or so I think) places.

[Eldaron]

Does your exhaust just puff in the cold? Because mine puffs when it's first warming up in the winter, but then it gets steady after a few minutes.