Octane to Tune

[blinkglory]

Is there any place that shows what octanes should can could be used with each tune?

[Mike_Levy]

What vehicle? Everything except the fuel economy tune and modify stock tune is 91 octane AKI (95 RON) or better. The Diablo tune and CAI tune on Mopars is 93 AKI (98RON) or better.

[blinkglory]

2015 Silverado. Thanks!

Do you by chance know if when you chose a different tune it overwrites the last tune or do you need to flash back to original first?

[Spiceygoat]

2015 Silverado. Thanks!

Do you by chance know if when you chose a different tune it overwrites the last tune or do you need to flash back to original first?

It will write the new tune. You don't need to flash back to stock first.

I have a 2015 Silverado with the 5.3 and 6 speed tranny. The Diablo tune is 91+ octane and the 87 octane tune is 87+. I'm running the 87 octane tune on mine with DOD disabled and a 10% throttle boost. I'm also running stock TCM tune with torque management turned off.

[blinkglory]

2015 Silverado. Thanks!

Do you by chance know if when you chose a different tune it overwrites the last tune or do you need to flash back to original first?

It will write the new tune. You don't need to flash back to stock first.

I have a 2015 Silverado with the 5.3 and 6 speed tranny. The Diablo tune is 91+ octane and the 87 octane tune is 87+. I'm running the 87 octane tune on mine with DOD disabled and a 10% throttle boost. I'm also running stock TCM tune with torque management turned off.

How is that 87 tune running for you? I am not sure I want to run 91+ all the time since I spend most of my miles in the city. I switched over to the economy tune to check it out and I have seen no difference.

[06MonteSS]

on your GM truck, 87 Octane Tune is for 87/89 octane.. Diablo Tune is for 91/93 octane... MPG Booster tune is an 87/89 octane tune.. Diablo Flex Tune is a 91/93/E85 octane tune...