What grade gas you running in 3.0's

[Riyad Aliyev]

Originally Posted by JCL

DinanM3, you seem to be confusing RON with pump octane. The poster who asked the question is in Geneva. 100 RON in Geneva is very close in anti-knock properties to 93 pump octane in North America. Your 100 octane fuel in a road vehicle doesn't make a lot of sense, as the engine was not designed for it.

But i think in Geneva, V-power from shell is an 100 octane, and nothing else, because if v-power is equal to 93, (as i understood) then what is "Sans plomb 93" also which is offered in Shell gas stations?
Because if this is something that is even lower... A friend of mine has Mazda rx-8 and he puts Sans plomb 93 into his tank, and i think it wouldn't run on that if it would be something les than 93.