Re: 2001 Suburban 1500 Gas Mileage

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Posted by 92sub ( on 08:09:19 06/24/11

In Reply to: 2001 Suburban 1500 Gas Mileage posted by #1 Son

I've had 3 Suburbans (all of different vintage) and the best MPG was my 1992 5.7TBI. 4WD and I was able to squeeze about 19.5 if I drove it right. Combined with it's 42 gallon tank I could go really far without stopping! My current ride (2001 Denali XL AWD) can only muster 14-15 highway. The AWD hurts and the 320HP 6.0, while it moves this beast along with great gusto, it needs alot of gas to do it. I understand the latest version truck (GMT900) will get 20 MPG with the 320HP 5.3L. I may have to prove that out within the next year!

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