1998 Jeep Cherokee - 6cyl - 4l - how to remediate pinging - works for me

I usually baby my Jeep Cherokee when I drive. Mild throttle, shift at 2000rpm, cruise at 1500rpm

It has always seemed prone to pinging at low to mid rpms, and have run 91octane to prevent it.

So, did a search via duckduckgo, and found this article: http://www.jeepforum. ( Read more... )