Posted by daveyk [108.162.219.127] on Wednesday, September 13, 2017 at 22:07:23 :
In Reply to: OT, but flathead Octane posted by Gary in CO [162.158.69.162] on Wednesday, September 13, 2017 at 20:31:08 :
It is refined more and has less impurities that may cause fouling.
Some of my newer power equipment calls for 89 octane.