I usually listen for ping before I decide to go to higher octane. That, is after I have switched gas stations and checked for accurate timing. As far asa problems...I heard that continuous pinging puts holes in your pistons.
however this could just be an 'old mechanics tale' too.
-Larry
[This message has been edited by Larry Delor (edited 07-03-2000).]
[This message has been edited by Larry Delor (edited 07-03-2000).]