Re: Real-world 6.0 vs 5.3 mpg in Suburban/Yukon XL

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Posted by 92sub ( on 09:47:27 01/18/12

In Reply to: Real-world 6.0 vs 5.3 mpg in Suburban/Yukon XL posted by A.Johnson

I've had a 2001 Denali XL AWD for over 5 years now. I'm a very hard driver, I use all 320HP leaving stoplights and I never run the speed limit. I always average 12.8 MPG in winter and 13.5 in summer. If my wife drives it goes up about 1.5 to 2 mpg. Best ever highway MPG was 16 MPG but that was prob with a 30 MPH tailwind. Reliability has been great. Other than a fuel pump failure at 110K miles, I only do oil changes to the beast. The power is fantastic and the AWD for 2001-2002 works fairly well (2003 and newer are different system). I did get to drive a 2007 Denali for a few weeks back when they first came out. Even more power than mine and driving the same I still averaged 15.5 so if you can swing the newer body with the 6 speed it does make a difference. The main reason I choose Denali over Yukon/Burb was the heated second row seats for the kids. Glad I did cause it has been a great truck. Will probably replace it with a 2007+ Denali/Escalade in a year or two.

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