Use the higher octane. Your ignition advance spring is probably out of spec (assuming your timing is correct)- easy to up the octane. You don't want to hear that ping too much in the D engine. Harold McElraft - 3354 --- In dmcnews@xxxxxxxxxxxxxxx, "sweetp01569" <paul.sweet@xxxx> wrote: > I finally fixed an exhaust leak on my car (a loose manifold nut). Now > that the car is quieter, I can hear it ping when I gas it hard to > accelerate. I currently use 87 octane (or whatever the lowest regular > gas is). Would a higher octane eliminate the ping, or is there an > adjustment I need? > > Thanks, > > Paul > Vin 10944 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/