Diablosport Forums

Posted: **Thu Jul 03, 2014 4:48 pm**

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

Posted: **Mon Jul 07, 2014 11:17 am**

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

has anyone tried this programmer with 2014 gmc sierra 5.3