MPGS

[87geeinn]

Went from a 9" Art Carr to a 9.5" PTC and noticed cruising RPMS went down about 200 or so. An efficient converter vs. a loose one will make a noticeable difference.

 

[jpwalt1987]

When people ask me what kind of fuel milage I get, I just laugh at the question and tell them if I was worried about MPGs I would drive a civic. Lol

Posted from the TurboBuick.Com mobile app

 

[ravege]

Excessively bad mpg can be an indicator something is wrong. 50% of similar engines mpg would raise red flags in my mind.

 

[gsgnnut]

Interesting question. If I behave I can get my mostly stock GN to give me about 22ish give or take, but that's keeping under 60mph . Not too much excitement in that. "normal driving" with a romp here and there and a blast or two it probably gets around 15mpg mixed. My GS on the other hand is lucky to ever get into the double digits. It seems to pass everything but a gas station. again, we are talking "normal driving", not really trying to waste or save . On the other hand, I do some long hauls in my 2000 Silverado with a small 4.8 and I tow frequently with it and on Sunday ,with a fully loaded bed and a heavy utility trailer I got exactly 16.3. for a 350 mile trip. Not too shabby really. With an Empty bed and taking it easy it tickles 20 MPG. Cruise control and no traffic is required for the best mileage. I recently towed home an 05 trailblazer with the Silverado not too long ago and that was a heavy load, the HD trailer with it together weighed quite a bit more than the Silverado and it still gave me about 12-13 mpg. Would love to have big block power to tow, but its great to be able to laugh when I hear my buddies moan and complain when their rigs get under 10 mpg towing just 2 sleds and I get twice the mileage with the same load! The 4.8 is no stump puller, but it gets the job done.

 

[84BuickGNYorkPA]

I generally get about 15 mpg mixed city and highway driving, all city and in the gas lucky to get more than 12, all highway and I can get just over 20 mpg.

Chuck

 

[BOP4ever]

I got 18 mpg with a mix of two lane 55-60 mph and 70-80 mph interstate driving. 200 mile trip.

 

[NorEaster]

my record was 26 mpg. Lean cruise, with CC set to 70 for the whole tank.

 

[gsgnnut]

wow that's pretty good.

 

[BOP4ever]

I got 23 once with the car all stock.