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03-29-2012, 02:35 PM
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#11 |
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Registered User
 
Join Date: Oct 2007
Location: Nampa Idaho
Posts: 7,630
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Re: Whats your impression of a 5.3L LS motor in these trucks?
I have a 5.3 in my 4/4 Silverado and I have gotten around 18-19 mpg on average on a 3000 mile trip ,I do have I believe a higher speed rear end (3:25 think) tho and that is where I am gaining mpg at..
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