Are not sure what MEK stay for intials, MEKP are hardener for polyester resin for glassfibre. Ask the shop who sell polyesterresin hardener and read the label if it contens Methylene Ethylene Ketone Perokside. Never used 2 stroke oil because i am not sure how much are viscose in oil and will it prevent the mechanical pressure in our modelengines and keep piston/cylinder tight without leak. Viscose must be higher to prevent engine agains wear and leak. I am using between 10W40 and 20W50. 10W30 are a bit thinner oil and i can not like this oil in the engine. I can not like thinn oil since the oil can not keep tight and prevent leak. Castor oil are best oil for modelengines when the engine are running hot without oil are burned away and good lube agains wear in the engine, prevent rust, leak. I am using motoroil cause the dieselengine are not hot enough to burn away oil and good enough to smear the engineparts and prevent rust, leak. Both Castoroil and motoroil help to cooling the engine.

Jens Eirik