What octane do i need to run in a 2002 rubicon? It is stock.

thanks in advance Squirrelhunter

 

It should tell you in your owners manual. Usually anything with a octane reading of at least 87. My 400EX manual says to run 91 or better. I ran 91 in my Kodiak, and it ran like snot, so I switched to 87, and it ran fine.

 

I bought the rubicon used and did not get the manual.