Boss002

So just wondering what has been the best people have gone on one tank of gas in a SS/TC, I do mixxed driving and I did 310miles on a tank for 11.8 gallons...

07SSYellow

iTrader: (7)

i dont know mileage but i once got 37.4mpg average driving from Colorado to Washington at about 85mph with cruise set

Eurasianman

I can't get passed 22.4 MPG and I do a mixture of city/hwy driving. Then again, my car is brand new and my foot seems to never let off the gas pedal

Stamina

I was getting 21-22 or so city, but with my evap mod and weight reduction I'm now getting 25-26 city. I can't wait to go on a long cruise to see what that'll be now.

kretty

evap mod?

umrdyldo

iTrader: (1)

I averaged 28 on my last tank. Staying out of boost because of MAP sensor malfunction really makes it go up.

IdreamofYenko

The best I've gotten so far was 26mpg with the cruise set at 80 all the way to nashville. Best city was 22 worst was 18 lol

Stamina

https://www.cobaltss.net/forums/show....php?p=4808249

Supercharged Guy

iTrader: (1)

22-24 city if I'm light on the gas and 28-32 on the highway

fakameanrepresent

iTrader: (4)

i got about 390 miles on a full tank of all highway once.

TommyP

iTrader: (2)

I get about 26 with a mix of city and 45mph country roads. How do you guys get such low mileage, you must drive it too hard. I get about 32 highway.

Kildore

36mpg with stage 1

Scythe_Snake

38mpg highway with switchable trifecta tune and full bolt ons.

Kildore

Downhill with the wind.. hehe

bri2203

iTrader: (10)

You have a SC.

That crazy! How fast were you going. compared to my old car thes car suck fuel bad ever bit over 60 mph. My old car loved 70-75.

Kildore

Hwy speeds. 65-75mph I have the luxury of being in some pretty flat lands. lol.. and depending on what direction your going.. its up hill slightly or downhill... but... yeah.. its just pretty flat. Oklahoma

jsscooby

My best if I remember correctly was 31mpg on a highway trip

07SSYellow

iTrader: (7)

actually bri2203 i have an SS/TC....read the sig......sold the SS/SC a few weeks ago and got an 09 SS/TC....

Boss002

hmm interesting results, i find that i have to keep mine in a lower gear say 4th up to 55mph on hilly rds it helps with gas big time and the highway it is terrible in 5th in any slight incline at 75mph

occsdude

iTrader: (1)

i get like 26 avg which is a mix of city and hwy and i drive my car pretty hard. ive seen it get like 36 going 55 the whole way on a road trip. then like 28-29 going 75 on a 3 hour trip

Highbeamz

Best was 36.75MPG (6.4L/100km) with GMS1 on winter tires going from Airdrie to Edmonton @ about 75mph, including some moments of heavy throttle, mostly cruise though. This week my average is about 9.0L/100km with mixed driving.

Boss002

how has the GMS1 changed your fuel economy anyone?

Eurasianman

^ x2

Would like to know as well!

Stamina

I think it's supposed to slightly improve it.

Boss002

if thats true then damnit i am sold already