GOOD DAY ALL, out here in Africa ( South Africa ) we only get 93 octane unleaded fuel at high altitude and 97 octane unleaded at sea level as well as a fuel which has a lead replacement additive for older vehicles ( contains no lead but instead has a lubricant for older type valves and valve seats) and we have done away with the older 87 octane fuels.Personally I have found no advantage of running the higher octane fuel,Normal every day, lead free, around 93 ron. and the 2 stroke oil to petrol mixture is at 50:! makes me a happy camper. One of my friends obtained 102.6 octane fuel( which is obtained from the various petrol companies for road racing) and used it in his 200 hp motor and in fact the motor run badly, I tried to explain that that particular type of fuel was designed for a much faster burn rate needed in high performance four stroke motors and will cause more grief than relief, WELL HE LEARNT THE HARD WAY and wasted a lot ofwileecoyote985 said:
