I have 4 new engines, two OS .46-2 strokes and 2 Laser 80-4 strokes. I've read that some people use Marvel mystery oil as an "after run" to lub there engines and even submerge their engines in it over the winter months. Can anyone tell me about this oil?
Also, is there a specific difference in running in 2 strokes compared to 4 stroke engines and is it ok to break in an engine in flight instead of on a bench? Thanks.