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06-01-2019, 02:04 PM
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#5 |
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Registered User
Join Date: Oct 2009
Location: .
Posts: 2,187
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Re: Anyone use a tuner, and get good results?
My 2011, with the same L96 and 6L90E that your 15 has, gets 10-12 mixed, 14.5 on the highway, and 6 when towing 8,000 pounds.
Want good fuel mileage? Then don’t buy a 3/4 ton truck. |
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