91 vs 87 octane, noticible difference in performance?
08-30-2005 | 11:05 PM
#16
Rennlist Member
Joined: Nov 2003
Posts: 11,710
Likes: 5
From: Boston
I think your wasting money if you do anything mor ethan 89 in an NA, maybe if your racing, but I don't know. I think 87 is not "hurting" a stock NA motor, and thats what i've heard from alot of these threads.
