👉 Sleeve fluid, also known as sleeve lubricant or sleeve oil, is a specialized lubricant designed to coat and protect the moving parts of internal engine components, such as piston rings, cylinder walls, and valve guides. Typically applied through a sleeve or ring that fits over the piston rings, it creates a thin, even layer of fluid that reduces friction and wear between these critical parts during engine operation. This not only enhances the engine's efficiency and longevity but also helps dissipate heat, ensuring smoother operation and preventing potential damage from excessive friction. Sleeve fluid is particularly useful in high-performance engines or those operating under extreme conditions, where standard lubricants might not provide adequate protection.
