What is the reccommended tune for 89 octane?

[camilomachado]

Hello everyone,

Tried searching for a specific answer to this, but couldn't quite find one. I just received my Predator for an F-150 5.4L. Here in the Northeast, our midrange gas is 89 octane instead of 91. What is the recommended performance tune for this? If I select 91 Octane from the Predator what parameters should I modify to compenstate since I am rated at 89. Or, should I just be using the 87 tune?

Thanks in advance.
Milo

[mikel]

If you do not plan on using premium fuel, I would suggest using the 87 octane tune.
For maximum performance the 93 octane tune willprovide the best results.

Thanks

[camilomachado]

If using the 87 tune, is there any benefit in continuing to pump 89 octane? Or should I just pump 87? My understanding is that you don't really notice an improvement until you start with the 91 octane rating.

I guess I'm just looking for a middle ground where I can enjoy some performance improvement and fuel efficiency improvement without spending an extra 50-60 cents a gallon from premium, 93 octane fuel.

But then again, I made my bed the second I took the keys to this truck....so I'm not gonna cry over it either.

[mikel]

If using the 87 tune, is there any benefit in continuing to pump 89 octane? Or should I just pump 87? My understanding is that you don't really notice an improvement until you start with the 91 octane rating.

I guess I'm just looking for a middle ground where I can enjoy some performance improvement and fuel efficiency improvement without spending an extra 50-60 cents a gallon from premium, 93 octane fuel.

But then again, I made my bed the second I took the keys to this truck....so I'm not gonna cry over it either.

Yeah, I would say go ahead and use a quality brand 87 octane, as there will be no benefit to running 89.

Thanks