hmmmm ok thanks manjohnathanromero wrote:bully dog stuff is junk!! the superchips cortex is about the only thing i would use on you vehicles...what 91 octane tune are you referring to on your pathfinder? If you are talking about the 2 degree bump up in timing it does jack for your vehicle, i have dyno'd my vehicle before and after with the 2 degree bump in timing done at the dealer and there were 0hp gains from it.
I've run 87 octane for 51k miles, even when pulling a 5,000# trailer, with never a knock or a ping. I tried 91 while towing and it made no noticeable difference in performance and the small improvement in MPG didn't offset the increased price.johnathanromero wrote:I get away with running 87 octane on a daily basis...helps I live at 5000+ feet above sea level!!