has anyone tried this programmer with 2014 gmc sierra 5.3

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450dozer
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Joined: Thu Jul 03, 2014 1:35 pm

has anyone tried this programmer with 2014 gmc sierra 5.3

Post by 450dozer »

I can find the option like it has in the online instructions for 91 -93 octane just diablo tune 87 tune fuel millage tune but no 91 or 93
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mikel
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Re: has anyone tried this programmer with 2014 gmc sierra 5.

Post by mikel »

the diablo tune is for premium fuel, min 91 octane.
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