Quote Originally Posted by blank cd
Cause 9 out of 10 times your car was built to run on 87 octane. Unless you're runnin a B18C or an H22A you dont need it. The rest of the honda motors are low compression, they dont burn that high octane properly. I wouldnt go higher than 89, but at todays prices its really not worth it
yea I was wondering that but my compression on my ls is up there with a gsr or b16.