- Apr 28, 2012
- Reaction score
- Ram Year
- 2010 Hemi Reg Cab 4x4
you never ran 87?I'm gonna give 87 a shot for my next tank. I definitely will be watching the ST and LT Knock for the tank. Should be interesting.
My truck didnt ping ever, just hesitated on it, plus 91 cleared hesitation and ran better in low rpm's. I'm not sure of much difference in high rpm's. Like I said, I still use it on occasion I'm not religious about it, but when I do it will hesitate everytime.