Marvel Mistry Oil

Used it to clean the cases on a VFR and 3000GT. Run a cap of it in the oil. Drive for 50-ish miles, drain and fresh oil and filter. Amazing how dirty the oil comes out. Wouldn't want to leave it in there long term.

 

Use some SeaFoam

 

JE pistons tells you to use it during assembly as a piston lubricant.

 

I have a can of this stuff that dates probably to the 50's, if not older. I wonder how much the formulation had changed over the years. Used it for assembly lube once "back in the day", not sure if the MMO had anything to do with it, but the bike was still running strong at 60k miles last I saw it.

 

Anything is better than a dry engine, they aren't filling the crankcase with it.