Quote: Originally Posted by
meatman 
im just looking to get the most out of my stock setup untill i can start upgradeing and dont want to use a high octane if it is going to hurt or waste im pretty new to my srt 4 so any info helps


If you're stock then I think 93 or slightly higher is the best. I had knock on 91 & 92 bone stock according to my scangauge. I think it helped my traps a little with the higher octane because it wasn't pulling timing. You can't hurt your car from running to much octane but you can from to little.