- Feb 15, 2003
- Jupiter, Florida
I don't know how well they are built. But if the goal is long life, go with a motorcycle oil at 32 to 1. If, for some reason, they are actually built well, with quality bearings, 50 to 1 would be just fine. My experience with Chinese engines is that the parts are seriously substandard. The fact that they last at all is a miracle.