RE: Two Cycle Oil for Air Cooled Engines
I would not use Amsoil in any engine.
In the ultralight world, there have been a huge number of engine failures using AMS oil. These guys have thier butts on the line and they mix properly and monitor EGT (Exaust Gas Temperatures) and CHT (Cylender Head Temperatures). Having the most RPM is secondary, reliable running and not destroying your engine are the most important things. The ultralight guys have tried different mixes, etc. etc. and they overwhelmingly as a group do not use AMSOIL . They dont want to destroy thier engines, they dont want gummed up, stuck rings, they dont want excessively high temperatures, and they dont want to die.
Finding settle differences in good oils is beyond what most of us can do, but when there is one oil that is so bad compared to the others, its very easy to tell.
JettPilot