View Single Post
Old 03-16-2010, 10:47 PM   #7 (permalink)
Master EcoModder
Join Date: Nov 2008
Location: Madison AL
Posts: 1,123

The Geo - '93 Geo Metro
Team Metro
90 day: 45.16 mpg (US)
Thanks: 30
Thanked 40 Times in 37 Posts
Originally Posted by thatguitarguy View Post
It doesn't make sense to spend more money on higher octame fuel if your engine is not knocking, and definitely not if the manufacturer calls for lower octane.
I am not advocating using higher octane. I am asking: Does using higher then approved octane (Premium) shorten the life of an OBDII engine meant to run on 87 (Regular)?
  Reply With Quote