Originally Posted by panic
Compression causing ignition is called DIESEL. IMHO not possible under 15:1 CR.

My compression isn’t anywhere near that. I’m not hearing any pinging at any speed or RPM (being careful not to lug the engine of course) so I am glad that it seems to be happy with 87 octane.

Last edited by Lugnutz; 09/26/2022 11:42 PM.