Gas mileage
04-11-2006, 07:59 PM
#26
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Originally Posted by Adirondack_Cobalt
Found out why my mileage sucked ***** on the way down to Kingston and back... all the tires were a wee bit low... like 15-17lbs low...
that'll teach me to pay more attention!
Mileage is back up in the upper 30's.
Scott
that'll teach me to pay more attention!
Mileage is back up in the upper 30's.
Scott
04-17-2006, 04:15 PM
#27
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money
Originally Posted by Roadrunner
its an advance in technology. thats your preference and thats fine, but if there are so many advances available, i would use them to save a buck or two.
05-16-2007, 09:02 AM
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Are most aftermarket wheels lighter than the stock steel rims on the LS?
I've had the car for a year and get around 31 avg w/80% hwy and 20% city - I keep it just about 5 mph over the posted speed limit most of the time. If I get on the hwy and reset the computer the display is usually around 36-38 while at hwy speed which is great...
However, if I get some lighter wheels, but need a little wider tires will that offset any mileage gain that the thinner tires get you, if they do get you any?
I didn't get an LS for performance, obviously. I got it because it was affordable and gets great mileage. I would like to make it look unique but not if it takes away from the mpg stats.
Great thread!
I've had the car for a year and get around 31 avg w/80% hwy and 20% city - I keep it just about 5 mph over the posted speed limit most of the time. If I get on the hwy and reset the computer the display is usually around 36-38 while at hwy speed which is great...
However, if I get some lighter wheels, but need a little wider tires will that offset any mileage gain that the thinner tires get you, if they do get you any?
I didn't get an LS for performance, obviously. I got it because it was affordable and gets great mileage. I would like to make it look unique but not if it takes away from the mpg stats.
Great thread!
05-16-2007, 01:49 PM
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05-16-2007, 04:08 PM
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I have a 2.2 cobalt coupe 5 speed. The whole purpose of this car is gas mileage. I am about to purchase either a cobalt ss or camaro z28 or ss as a weekend car. I havent really sone anything, other than the air box mod which seemed to help a little. When i drive the car easy i am able to get 40 MPG but thats 80-90% highway miles. I have my tire pressure at 34 pounds. Thats on the 15 inch wheels. Whats the highest pressure i can go and still be safe? Also, is there anything else that i can do to get better mileage that is free?
Inexpensive ways to try, u can get some Lucas fuel treatment products and/or a K&N filter
05-16-2007, 04:21 PM
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I have an 06 ss s/c and I get 21-23mpg city and 31-33mpg highway. I'm sure the larger wheels are making a difference...on the highway I usually run 75-80 and still am over 30 mpg.
05-16-2007, 06:32 PM
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i dont hit it all the time. last week my high school had its state testing, and i have already passed it. so the back street to the schools football stadium was clear, no cops and i hit the rev-limiter at 5500 i think....i dont remember, i was just pissed and sad. the car sounded great and it lost its breath...damn
i feel stupid for asking but what exactly will a VVT do for us?
i know the 2.4 guys have it, dont understand whats so great about it.
i feel stupid for asking but what exactly will a VVT do for us?
i know the 2.4 guys have it, dont understand whats so great about it.
Last edited by YSUsteven; 05-16-2007 at 06:32 PM. Reason: Automerged Doublepost
05-16-2007, 06:59 PM
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I usually get around 28mpg and on nice stretches of highway doing like 70-80 I get around 38+ mpg. I did manage to get below 8 mpg the ather day when I did a 0-105mph run
05-20-2007, 07:27 PM
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i get 29 in the city and 40 on the highway. the biggest thing i do is take it real easy on the driving. i also have my tires inflated to 42 psi. the very best methods to obtain better mpg is found here www.gassavers.org
05-20-2007, 08:47 PM
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gmpp exhaust took me from 36-37 to 39-40 driving ~60% highway. I got the touring, sounds really nice, not loud enough for anyone but you to notice, and the tone is deep and mellow, not ricey at all.
I switched to synthetic oil (i used mobil 1, its all I could find locally) that was good for about 1-2 mpg, and the engine will thank you down the road.
As far as free stuff, the air box mod is it. keep your engine cover on, a warmer engine is more effecient, not by much but every little bit helps. I run 35# in my tires, you can probably get 40 safely but your not going to gain much and I'd rather not take that risk.
If you are really concerned with lowering your costs, don't do a thing to your car. I did the math with my exhaust (which I got on sale from crate engine depot [BUY FROM THESE PEOPLE!!!]) and if gas stays at $3 a gallon it would take me 43,000 miles to see a return on my investment. but I like seeing that big number when I check my MPG and the car runs a little better too, so thats how i justify it.
I switched to synthetic oil (i used mobil 1, its all I could find locally) that was good for about 1-2 mpg, and the engine will thank you down the road.
As far as free stuff, the air box mod is it. keep your engine cover on, a warmer engine is more effecient, not by much but every little bit helps. I run 35# in my tires, you can probably get 40 safely but your not going to gain much and I'd rather not take that risk.
If you are really concerned with lowering your costs, don't do a thing to your car. I did the math with my exhaust (which I got on sale from crate engine depot [BUY FROM THESE PEOPLE!!!]) and if gas stays at $3 a gallon it would take me 43,000 miles to see a return on my investment. but I like seeing that big number when I check my MPG and the car runs a little better too, so thats how i justify it.
05-20-2007, 10:09 PM
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05-21-2007, 11:47 PM
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mileage
So you think a Cavalier weighs 2400lbs??? LOL.
Where is your proof of what you're saying about the 2.2 getting better milage in the city???
Before I bought the GT, I took the GF's base auto Pursuit for the drive to work to measure fuel economy compared to my Grand Am V6. It's a lot of stop of go driving and I averaged 18.8mpg which was considerably more than the Grand Am. Now with my GT 2.4, the same route over a week I averaged 22.9mpg. Has anyone else done a real test with both cars or will we just throw around opinions based on thin air???
Bottom line is the 2.4 and 2.2 have the same manual tranny with the same gearset. If you keep both under 3000rpm, they are going to get the same economy.
Where is your proof of what you're saying about the 2.2 getting better milage in the city???
Before I bought the GT, I took the GF's base auto Pursuit for the drive to work to measure fuel economy compared to my Grand Am V6. It's a lot of stop of go driving and I averaged 18.8mpg which was considerably more than the Grand Am. Now with my GT 2.4, the same route over a week I averaged 22.9mpg. Has anyone else done a real test with both cars or will we just throw around opinions based on thin air???
Bottom line is the 2.4 and 2.2 have the same manual tranny with the same gearset. If you keep both under 3000rpm, they are going to get the same economy.
Cavalier and Cobalt weights were on the Chevrolet website, so I don't see why you would be laughing out loud about a Cavalier weighing 400 lbs less than a Cobalt. It is why they are quicker and get better mileage if they have the same engine and transmission. I didn't say 2400lbs though, I said 400 pounds less, the Cav was around 2550 and the Cobalt was something like 2950.
05-22-2007, 01:43 PM
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If they are both manual tranny I agree. I was comparing a 2.4 auto to a 2.2 manual.
Cavalier and Cobalt weights were on the Chevrolet website, so I don't see why you would be laughing out loud about a Cavalier weighing 400 lbs less than a Cobalt. It is why they are quicker and get better mileage if they have the same engine and transmission. I didn't say 2400lbs though, I said 400 pounds less, the Cav was around 2550 and the Cobalt was something like 2950.
Cavalier and Cobalt weights were on the Chevrolet website, so I don't see why you would be laughing out loud about a Cavalier weighing 400 lbs less than a Cobalt. It is why they are quicker and get better mileage if they have the same engine and transmission. I didn't say 2400lbs though, I said 400 pounds less, the Cav was around 2550 and the Cobalt was something like 2950.
My 96 Sunfire GT was 2720lbs with a/c and manual trans.
My 06 G5 Gt is 2786lbs with a/c and manual trans.
Case closed.
05-22-2007, 02:11 PM
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I give it more gas than I should, and my MPG meter reads 21.8 right now. I've been doing a bit more highway driving lately too, as I've recently moved further from work.
05-22-2007, 02:21 PM
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i get over 30 mpg highway when i keep it under 60mph. and roughly 24.5 city with me driving like a bat outta hell
*note my MPG went up significantly with the addition of larger injectors and a dyno tune. who would have thought?
*note my MPG went up significantly with the addition of larger injectors and a dyno tune. who would have thought?
Last edited by chevysalesman614; 05-22-2007 at 02:21 PM. Reason: Automerged Doublepost
05-22-2007, 02:27 PM
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I get about 24-29 MPG in mine depending on how I drive.. Waiting for tuning to be available... Best thing to do IMO is to allow the car to breath a littl easier (Intake, Header, DP & Exhaust) then get tuning and you'll be ok.... I drive mostly city...
05-28-2007, 11:42 PM
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case closed
First of all, don't believe what the Chevy website lists. It has a habit of changing and I've seen the same car listed as a different weight on the Canadian and American websites.
My 96 Sunfire GT was 2720lbs with a/c and manual trans.
My 06 G5 Gt is 2786lbs with a/c and manual trans.
Case closed.
My 96 Sunfire GT was 2720lbs with a/c and manual trans.
My 06 G5 Gt is 2786lbs with a/c and manual trans.
Case closed.
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