I am overseas. Having a hard time finding hot rodders that speak English so I have to rely on my old Buick brethren. Thinking about buying a Turbo car. Still trying to decide what car to get. I think we use the RON octane method. Thought I could figure it out by google ing it but only got a head ache. Is there a simple calculation for RON to the US method? We have 95 RON. Will have to look further to see if they have a higher or lover octane choice like we do in the US. Also have LPG and is about half the price of regular gas. Wondering if the LPG would harm a Turbo motor. I know it would not be tuned to LPG for performance driving.....but would it be ok for A to B driving?