M6 and Gas Mileage???
04-26-2006 | 06:45 PM
#41
24mpg highway....I still think I can do better.I'm thinking the O2 sensors might need to be swapped out...they have over 100k miles on them!
Window stickers for these cars when they were new stated a mpg of 28 for highway (M6).There should be a little more mpg to squeeze out...
I know we all shouldn't be worrying about mpg with big old V8s under the hood but,I also like to use mpg as a good indicator as to when something is not quite right with a car...
Window stickers for these cars when they were new stated a mpg of 28 for highway (M6).There should be a little more mpg to squeeze out...
I know we all shouldn't be worrying about mpg with big old V8s under the hood but,I also like to use mpg as a good indicator as to when something is not quite right with a car...
04-26-2006 | 07:33 PM
#42
Of course I also pulled 28 mpg on a straight highway trip. Nice to tell my friends that my 325+hp sports car running 12's in the 1/4 can also can get 28mg. ;-)
Sure beats my jeep, that gets 15mpg if its not windy!
Sure beats my jeep, that gets 15mpg if its not windy!
04-26-2006 | 07:48 PM
#43
Teching In
Joined: Feb 2006
Posts: 44
Likes: 0
i picked up my 00 m6 z28 a week and a half or 2.. on the way back (all highway) i got a little under 27 mpg with 3 people in the car + trunk full of luggage and ac on... i was verry supprised today i calculated gas mileage and got 19 mpg, all city except ~10 miles highway (i burned enough gas on the onramps to compensate for the highway), my v6 m5 firebird would get about 21 mpg all city (i just got the ls1 a week ago so i was driving the firebird a little nicer)
Edit: forgot to mention this is with 95,000 miles, all stock
Edit: forgot to mention this is with 95,000 miles, all stock
Last edited by dan23467; 04-26-2006 at 07:57 PM.
04-26-2006 | 10:01 PM
#46
Originally Posted by Camaro_Z28
There is NO lag whatsoever in the Displacement on demand system, I too what skeptical, I'm a GM tech and have driven it in every new vehicle GM puts it on, and The only way you know it even works it to watch it on the scan tool. It cuts in and out it firing order starting with the next cylinder in the firing order when conditions are met, which makes it seamless. Wanna get killer fuel economy, its there, want power its instantly there, no lag at all. its pretty awesome. Oh yea, and I usually get 22-24 MPG mixed 50/50 driving with a lead foot.
04-26-2006 | 11:25 PM
#48
Teching In
Joined: Feb 2006
Posts: 23
Likes: 0
I have a 98 M6, the fuel economy is excellent! I get nearly 30 mpg on the highway, and 23 around town. I drive very conservative though, due to mounty being present in our area. I will not use 6th gear until I get up around 60 or higher. Your mileage will vary in line with your driving habits.
