Gas Octane

[MrCougar]

Hi, What´s the difference between the Gas Nomenclature: RON & R+M/2 ??? . I can get RON 95 Octane!, If that Gas is Safe to use with 35 cc Heads??????. Regards,Don

[Markus]

(R+M)/2 means (RON+MON)/2 and is typically 5 lower than RON.

Your 95 octane RON corresponds to 90 octane (RON+MON)/2.


To learn more about gas, check out the gasoline FAQ. I have a link from my links page. (see below)

Whether you can run with 35 cc heads, I leave to the Mercury experts.