BMW 3-Series (E90 E92) Forum - View Single Post

lawdude · 07-06-2009, 03:07 AM

Research octane number is higher than motor octane number. In the US octane is determined by (RON +Mon)/2. Higher is better.

07-06-2009, 03:07 AM	#2
lawdude Colonel 93 Rep 2,339 Posts Drives: 335i ZPP ZSP TiAg MT Join Date: Jul 2006 Location: Georgia iTrader: (1)	Research octane number is higher than motor octane number. In the US octane is determined by (RON +Mon)/2. Higher is better. __________________ What do I know? I'm insane.
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