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Old 10-29-2013, 11:07 AM   #4
Special-Ed
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Join Date: Jul 2013
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Re: 03 Z71 Tahoe

Quote:
Originally Posted by biggsteve97 View Post
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.
actually it can... my point is they ay have switched fuel blends at your gas station...

they may of had 100% and switched to 10% ethenol

most people dont understand this fact that low mid and hi does not mean they add or take away ethanol
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