The lubrication of IC engines is required to reduce tear, vibrations, over heating, and cleaning. The lubrication of IC engines has the following advantages :
1. It reduces wear and tear of the moving parts.
2. It damps down the vibrations of the engine.
3. It dissipates the heat generated from the- moving parts due to friction.
4. It cleans the moving parts.
5. It makes the piston gas-tight.