1st Gen FTW - It's AutoMedic!
Join Date: Jun 2008
Location: Garrison, ND
Actually, with a name like lduMALE I wouldn't guess you're a girl.
Octain slows the burn rate of gasoline. Pinging comes from the flame front of the explosion 'impacting' the piston... by adjusting the octain rate you can keep the flame front slower, thus eliminating the the impacting.
You will find no changes to your plugs by changing fuel octain ratings, IMO.