Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

I use Coleman fuel and Marvel oil mixture of about 16 to one. I was considering reducing the oil or perhaps
changing to another oil. I had a suggestion that Red line synthetic oil burns cleaner but have yet to give it a try.
I didn't notice any chamfer, but I had no trouble replacing the piston with the new ring. Last night I ran my engine
and I had frequent stalling then I realized it was time for new batteries! Oh well.

Thanks

Paul.