Legal composition of distilled fuel products.

[Coligny]

Guys do you know a link showing the defined legal composition of the 4 main fuels available to consumers in japan:

regular gasoline
premium gasoline
heating fuel
diesel fuel

also, them taxi do they run on LPG or CNG ? are convertion kits available ? is sale allowed to non corporate customers ?
[SIZE="1"][color="Gray"](yes I'm really asking me these kind of questions on a saturday morning at 8... the sleepless night with bowels on fire thanks to the local tap water might have had some negative influence on this...)[/color][/SIZE]