2018+ Ford Calibration Kit/Tune with Sheetz 94 Octane Flex Fuel

[Pandajoshy]

Anyone know if it would be safe to use Sheetz 94 Octane fuel with the 2018+ For calibration kit/tune? It says flex fuel next to it, but I heard that as long as we use 91+ octane it should be fine and that the Ford tune prefers high octane. Any info on this?

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[EFI]

You can use 94 on any pump gas tune you want, the computer is smart enough to constantly add and remove timing based on KR or lack thereof. Even if it doesn't gain any timing, having higher octane gas will give you slightly more headroom for keeping KR at bay when things get hot.

The FP tune is a bit more agressive with base timing, so yes you're going to want as much octane as you can get to make the most out of it.

 

[Pandajoshy]

You can use 94 on any pump gas tune you want, the computer is smart enough to constantly add and remove timing based on KR or lack thereof. Even if it doesn't gain any timing, having higher octane gas will give you slightly more headroom for keeping KR at bay when things get hot.

The FP tune is a bit more agressive with base timing, so yes you're going to want as much octane as you can get to make the most out of it.

Thanks for the reply! That's what I thought, but again, the fact that it says 94 Octane flex fuel made me wonder if I needed a flex fuel tune to use it.

 

[ihc95]

Thanks for the reply! That's what I thought, but again, the fact that it says 94 Octane flex fuel made me wonder if I needed a flex fuel tune to use it.

If that fuel is more than 10% ethanol, I would not run it unless you have a flex fuel tune.

 

[EFI]

Thanks for the reply! That's what I thought, but again, the fact that it says 94 Octane flex fuel made me wonder if I needed a flex fuel tune to use it.

If it's labeled as flex fuel, you should check the ethanol composition. If it's more than 10-15% you would indeed need a flex tune.

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