ORIGINAL: marquisvns
..... the flash points of different oils:
Aeroshell 500 at 280C
Mobil Jet II at 265C
KingTech Oil 209C
.... I respectfully think, it just may or may not be the contrary to your assumption that why KingTech is incompatible to Aeroshell 500.
Regards,
Barry
I think you are right. The engine is running cooler,and it's not burning off the 500 properly, and it leaves the carbon.
Thanks for the insight.