13th Feb 2008, 20:15

I agree, people shouldn't complain about gas guzzling trucks when it's obviously bigger than a Prius...

15th Apr 2008, 15:19

I have a 2001 Yukon with the 6000 engine, on long trips I average 16.6 MPG @70/75 MPH, towing my boat I average 14.6 MPG @ 55/60 MPH, No other problems except when the drive shaft to transmission splines get dry I get a clanking from gearing down to acceleration, I have over 100,000 Miles and still running strong...

28th Oct 2008, 19:47

Great review. very informative, and yes gas is obviously bad, but important to note. thank you.

10th Mar 2009, 19:29

Bad??? What are you talking about? The puppy's 6.0 L delivers 325 Hp and 375 Ft Lbs of torque at 4000 RPM. You can also tow 8200 LBS with this Denali with a minimal loss in economy. Keep your foot out it and slow down. I get 18 to 19 MPG all day long at 55 to 62 MPH, but drops to 13 to 14 at 78 to 83 MPH. Towing performance is very strong if you are planning on towing. If you drive it hard, you can plan on an all around average of 14 MPG.

9th Jan 2012, 16:16

12 MPG is excellent for a 6.0L V8.

I used to have a Dodge Dakota 3.9L V6 and GMC Sierra 4.3L V6, and they both burn the same 12-13 MPG.

10th Jan 2012, 09:02

"12 mpg" and "excellent" should never be used in the same sentence. It is sad to me that 40 years of "innovation" in the car industry have done very little for large vehicle mileage figures. We had an Olds wagon back in 1970 that got around 12 mpg. It was a full framed car and probably weighed over 4,000 pounds, so pretty similar to today's large SUV's.

Seems 42 years later we should be getting around 50 mpg with large vehicles. It is a blatantly greedy business. Oil companies have stifled the progression of the automobile in favor of profits. People have been duped into believing they are so much more efficient than they were years ago, but in reality it just isn't the case.

Now we buy expensive hybrids with hugely wasteful batteries in them, that get 40 or 50 mpg, when cheap entry level cars were already getting those mileage figures over 20 years ago. I know economy cars have gotten bigger, but they have had over 20 years to figure out how to make them run more efficiently, and their solution is huge batteries that will be in landfills all over the world in a decade from now. We need some real progress in the auto industry.