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Old 01-22-2013, 07:47 PM   #31
piecesparts
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Join Date: Nov 2003
Location: Lebo, Kansas (middle of nowhere
Posts: 6,821
Re: My 2012 GMC Sierra

Quote:
Originally Posted by nds1968 View Post
How is the Z71 package killing the gas millage?
Z71= 4 wheel drive= lower MPG. The average gas mileage on the new 4 Wheel Drive trucks appears to be around 15 to 17 MPG. Where the mileage for the 2WD trucks averages around 19-21. Unless you are going to the mountains, working in the country, or really driving in deep snow, the 4 wheel drive provides more pain than success. I have been driving 2 Wheel drive trucks for many years, now and I am very comfortable with my mileage and the fact that I get around as well as most 4WD trucks on the icey highways of Kansas. I am by no way knocking a 4WD, but in the long run, the mileage and wear on the extra drive components is costing the owner much more, unless he really has a need for the extra driveline.
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