Inliners International Forums General Discussion Engines Hardened Valve Seat Inserts and unleaded fuel . . .

I talked to one of the chemists at work. If an additive were to improve the combustion process, it would aid in the conversion of C to CO2; CO is incomplete combustion. Decreasing valve seat erosion would involve tying up the corrosives such as sulfur. He couldn't concieve how elemental tin in solid form could perform these tasks.