What do you use?
here you go https://www.scionlife.com/forums/viewtopic.php?t=105998 we had a whole thread about this not too far back. hope that helps.
Joined: Jul 2003
Posts: 3,353
From: Holding the detonator
unless you have high compression, 87 is fine. The only difference you may feel with 91 is quicker acceleration due to less money weighing down your wallet.







