d1 mule wrote:from what i understand rotarys die cuz the apex seals get hard and brittle as the factory pre mix (oil in the fuel for luberication) thingy isnt really up to the task, so if you put 2 stroke pre mix oil in the fuel they last alot longer.
not sure about the early ones but the late model engines as in battys have an oil injection system on the engine,
they inject engine oil from the sump direct into the rotor housings to keep them lubricated. (so if anyone ever says it uses no oil id be thinking twice about them)
ive done away with that on mine and i just run premix i run more oil than i should to be safe.