Will Engine Knocking Cause Oil Burning?

[DeJulian]

Engine knocking can cause oil burning, as it exacerbates wear between the piston and cylinder wall, leading to cylinder scoring over time. Introduction to Engine Knocking: Engine knocking is a phenomenon where a metallic knocking sound occurs when the pressure rise rate inside the cylinder is too high. Engine knocking is categorized into combustion knocking and mechanical knocking. Combustion knocking, or hot knocking, refers to sharp metallic knocking sounds near the top dead center due to combustion-related reasons. Mechanical knocking, or cold knocking, occurs when abnormal clearances in moving parts and bearings cause dull, heavy knocking or friction sounds at or near the top and bottom dead centers or when passing through the middle of the stroke. Effects of Engine Knocking: Prolonged engine knocking can reduce engine lifespan, and severe cases may lead to excessive oil consumption, piston breakage, or cylinder wall damage. The engine may shake, power output may decrease, and operating temperature may rise excessively. Incomplete fuel combustion can result in black smoke in the exhaust and increased gasoline consumption.