EdMat
Well-known member
Not sure if this was coincidence or not, but when I bought our 2012 RT S, I used 87, the motor would hunt at idle. I decided WTH, I'd try running a higher grade and put in some 91; after a couple of tanks, the motor no longer hunts at idle...
Maybe it was all the extra super cleaners added to the premium grades that cleaned it out and let it puurrrrrrrrrrrrrrrr. :2thumbs: