[deuce_roadster]

I would avoid it. Synthetic oil works well with modern engines with tight tolerances and modern seals. It has great lubrication properties you don't need and a worn engine with ancient like Chicago Rawhide and rope seals will let a lot of that synthetic oil find its way to your clutch and garage floor. Stick with something like Valvolene VR1 that has zinc or any petroleum oil you like. That is my advice. Woodies are cool!