Car Court

Posted by salijema (A) on March 15, 2007 at 07:07:43

In Reply to: Octane Booster posted by chris keating on November 14, 2005 at 12:28:13:

Have you checked out NASIOC.com (North American Subaru Impreza Owners Club)? If your ECU is a learning ECU (I suspect it is, as the one in my MY03 WRX is), then your car can take advantage of the higher octane and will advance timing to the point of predetonation, and then back off slightly.
Do a search there for octane, and you'll find lots. Torco is a pretty well-touted additive, but I've not tried it yet.
Good luck.