I put Sunoco 93 in the other day. Omg the truck loves it. It doesn't hesitate at all and my spark knock is gone 100%. I only put the 93 in because it was cheap. I can't afforded to always run 90+. Any tips to help make my truck run like this on 87. Thanks

 

Truck or jeep?

 

My bad "jeep" kill me now

 

At least he didn't say "car" !!

 

Seafoam it up!

 

I've done the mopar combustion cleaner like three times with no luck, Ive done the mist water into the intake with no luck. I'm running about of ideas and it's really bad once the motor gets up to temp

 

You can add a bottle of octane booster on each fill up and see how that works or you. You can also try running 89 "mid-grade" if its available in you state