I was considering a drop-in...but I'd rather get a full intake...

My 3.8 Monte SS gets better mileage than my 2.4 Cobalt SS.

 

I get 25mpg on average with my 2.0 in the Redline. Actually I take a new way to work and it's back roads about 85% then 15% stop and go averaging 55-60mph....I just got 100.1 miles to the first 1/4 tank!!!!! Still 3/4 of the tank to go. The best MPG i have gotten was 37mpg on my trip moving to AZ from Ohio, almost every tank I got 34mpg 98% freeway except for New Mexico darn hills took me to 28mpg.

 

I know its 34 highway....(checking city).... 25 city. dont know which fuel type, probably regular.

 

wait untill your first oil change and dont go by the econ reading do the math with your milage and the ammount of gas u used my cobalt has 3500 50/50 city and highway and i average 25 with the math and 20 on the econ

 

Wrong.

8.5L in the city is very good and beats Transports canadas estimates.

8.5L per 100km = 33 CDN MPG (thats just over 26 mpg for the Yank gallon)

My last tank I got 8.45L per 100km city driving. But I did have to take it really easy.

 

Last highway trip going ~65 the whole time, I averaged just over 34 mpg. I consider that pretty damn good for a 2.0L SC cobalt.

 

I have the 2.0sc and am getting on average 24~26mpg depending on how I drive since my last fill. Im not sure how the computer is on the other models but with mine I reset both trip B, ECON mode and MPH mode each time I fill up. this gives me in my opinion a more accurate report on how im driving from fill to fill.

 

I am getting about 31mpg. My 2.4L is a 5spd and I use 87 octane. I have no city driving though. The average speed shows 45 mph and I have 4000 miles on it.

 

I'm getting 21-22 MPG City and 35-37 Hwy with my 5spd 2.4L. Depending on driving style these number have gone up and down, but these are my "normal" driving numbers. I have compared the factory MPG guage against measured MPG (miles driven/gas burned) and the guage seems to be right on.

 

damn im at like 1300 miles and cab barely break 17 mpg

 

Just got my car three days ago. I have 205 miles on the first tank and still have over 1/4 of a tank so I think i'm doing pretty good. I'll let ya know what exactly I got when i fill up and have the math

 

2.0 SS/SC sorry forgot to say that

 

Why Is Our Gas So Shitty. I Get An Average Of 21.6 And Its About Ninety Percent Free Driving. I Have Almost Two Thousand Miles

 

You're right -- Chevy's website lists the following:

2.2L DOHC ECOTEC
5-speed manual transmission 25/34
4-speed automatic transmission 24/32

2.4L High-Output DOHC ECOTEC
5-speed manual transmission 25/34
4-speed automatic transmission 24/32

2.0L Supercharged DOHC ECOTEC
5-speed manual transmission 23/29

For fuel it says:

Recommended unleaded fuel
2.2L 87 octane
2.4L not yet published
2.0L 91+ octane*
*Cobalt SS Supercharged will operate with 87 octane unleaded fuel. However, a power loss will be noticeably felt by the driver.

( to avro206 for mentioning tdiclub.com That's my home for my Golf TDI--I average 42mpg or 600 miles per tank)

 

my gas mileage got a LOT better after a few thousand miles... i used to get the same, around 20 mpg also... now i get more like 29-30 driving the same...

 

make sure your all using only top tier gas ... it doesnt matter WHAT octane level your using just use the top tier for the love of your car

 

Quote:

Originally Posted by hailezecomet

My 2.4 L gets on average 8.5l/100km(combined city/hwy) and it has 8000km on it...and i use premium all the time. Probably should do better than that.

i've noticed i get the best MPG after filling the tank full...i'm serious when i say this that i've gotten 5.8L / 100km right after filling up.....thats the best MPG i've gotten from this car

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2006 Cobalt SS 2.4l BLACK