Fuel in Japan.

[Beer Baron]

Hi Guys,

Just a quick question for you. I understand that Japan enjoys better quality - higher RON fuel than us in Aus. My question is, if you go to a servo and just buy their equivelant of what we call "regular unleaded" what RON is it? Some people reckon that the lowest RON fuel in Japan is 100 RON - that seems a little high to me. I don't doubt that 100RON is available, but I just found it hard to believe that 100RON is the "regular" fuel. I guess my reall question is: what's the highest RON available from the pump AND what's the lowest RON available from the pump in Japan.

Thanks guys,

Richard

[DCD]

bit hard to answer your question as Japan doesn't use Ron or Ron+Mon/2 to measure fuel octane rating. They have their own JIS standard method to come up with the number, which is usually 100 octane for "hi-oku". Not sure about "regular" simply because they are not forced by law to display the octane numbers at the pumps.

[hayai32]

the "hi oku" at my town's big servo was 104ron, i think. it was called hyakuyon (=104 in english) so im assuming that it was talkin bout the octane rating.

[Beer Baron]

Thanks guys

Richard