03 Z71 Tahoe - The 1947 - Present Chevrolet & GMC Truck Message Board Network

10-29-2013, 10:50 AM

biggsteve97

Registered User

Join Date: Jan 2010

Location: Kansas City, Mo

Posts: 284

Re: 03 Z71 Tahoe

Quote:

Originally Posted by AMERICAN PICK-UP

I have had several of these rigs they get around 10-11 mpg in town about 15-16 on the hightway. average about 12.5 mpg.

Well that may be but it does not explain why from 2006-late 2012 I averaged 17.5mpg on my daily drive and now I am only averaging 13mpg. I use QT mid grade and have since 2009 because I drive past one every day on my way to work. I did try premium about 2 months ago for several tanks and made absolutely no difference.

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2003 Chevy Z71 Tahoe 190,500 miles
2002 Chevy Silverado 1500 4x4 230,000 miles
1987 custom built Silverado 4x4 435,764 miles
1985 K5 Blazer 396 bb 4x4 project
1982 K5 Blazer Silverado 4x4 519,348 miles

Last edited by biggsteve97; 10-29-2013 at 11:01 AM.

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