Quote:
Originally Posted by bill2129
With premium gas I get better mpg.
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Thats another benefit,my tuner always gets better MPG by tuning for 91+ octane.
When he tunes full-size GM trucks equipped with the 5.3 V8,his customers can usually get 1 to 1.5 better MPG.
Of course he always likes to say..."you probably won't see it because you'll be in the gas more"!!!
