Originally Posted by mrpep
2003 and when towing I used 7.5 mpg
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Originally Posted by Mr. Dan
Our son's unit is also a 2003.
I think alot of those Denali's were all-wheel-drive back then. That will contribute to the lessened mpg.
I bought an escalade wrecked a few weeks ago, i think its a 2002 or 2003 with the HO. 6.0. Its Awd and i only drove it around 50 miles home.
The DIC showed it got 14.5 mpg with aftermarket exhaust on it and empty. I did notice it shifting alot, but i thought it was due to reduced back pressure from the aftermarket exhaust . I already have a stock muffler to put back on it to try to regain the back pressure needed to keep it in the torque area a little better w/o shifting all the time.