What does Marvel Mystery Oil do?
How does it work?
What are any down-sides to it?
I've got a mid-1950s engine that had stuck piston rings, smoked like a mosquito truck. I added Marvel to the crankcase oil, to the gas, and down the spark plug holes.
It worked great. No more smoking, no more stuck rings, almost immediately.
Should I change the oil now?
Thanks.
How does it work?
What are any down-sides to it?
I've got a mid-1950s engine that had stuck piston rings, smoked like a mosquito truck. I added Marvel to the crankcase oil, to the gas, and down the spark plug holes.
It worked great. No more smoking, no more stuck rings, almost immediately.
Should I change the oil now?
Thanks.