I spoke to a Japanese friend about this a few years ago and yes, they quote 100 RON for their fuel, and the MON number is 10 points lower, at 90 MON. The USA quote a more techinically corrected number, if you look at the testing methods that determine these numbers, they use (RON + MON) / 2.
Mitch.
Wed, 18 August 2004 23:45
