Quote:
Originally Posted by Skip_1074
Okay, so here it goes...I just purchased my truck and a CTS to go with it. At this point I am not getting any custom tunes on order for at least a few weeks as I have some other things that I need to buy for the truck as well right now. Can I run the 93 performance tune with 87 octane until I am ready to place my order for custom tunes or should I stay with the 87 tow tune?
I am planning on getting both custom performance and tow tunes for 87 octane in the near future, but am trying to make sure that I am squared away until that point.
Thank you.
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NO!! The 93 performance tune is specifically for higher octane gas. Doing so could result in damage to your truck.
Use the 87 octane tow tune or fill the tank twice with 93 before switching to the performance tune.