To cam or not to cam? 4.0 OHV

[jd4242]

Most tunes don't even start to wake up till the "89" i bet your notice a pretty big difference when you upload the 89.if it was me i would run a 93 or performance tune all the time or least the 89.maybe you can split the difference in gas or you can buy an additive and add it to 87 gas but i would go that far unless your FI

 

[Dono]

ok, ok.
I hear you.

I'll try something.
I didn't ask for the 93 tune from James, but I'll fill with mid grade next time, and upload 89 tune. Then I'll keep my head down and hope no one catches it.

More to come on this when I fill up this weekend.