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Tungsten disulfide (WS2) appears to work well as a dry lubricant for the rings, and cylinder walls...same as Total Seal Quickseat.

"There is a critical time period for new or “green” engines known as the break-in period during which asperity contacts between the moving surfaces of joined components are removed or modified to allow moving surfaces to matingly conform to one another. During the break-in period, rough outer surfaces of new piston rings wear against the tiny surface scratches that exist in the cylinder wall causing high spots to be worn off, thereby properly fitting the rings in the cylinder bore. During this break-in period, the piston ring and cylinder wall interface is particularly susceptible to a condition known as scuffing, wherein there is a propensity for the piston ring to momentarily weld to the cylinder wall. Scuffing occurs when the new piston ring is in metal-to-metal contact with the cylinder wall and the piston ring expands under pressure and heat. As a result, the cylinder wall is roughened and the piston ring and cylinder wall fail to mate and form a proper seal. Accordingly, gases and oil may escape, thereby reducing the efficiency and overall useful life of the engine."
Ref: US Patent Application for Piston ring coating Patent Application (Application #20040237776 issued December 2, 2004) - Justia Patents Search
 
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