What Causes Engine Oil Burning in Vehicles?

[MadelineDella]

Vehicle engine oil burning can be attributed to several factors including aging engine valve seals, worn piston rings, and excessive piston clearance. The specific causes and solutions are as follows: Aging Engine Valve Seals: When the engine valve seals deteriorate or become damaged, engine oil can leak into the combustion chamber through the valves, where it either burns or adheres to carbon deposits on the valves. It is essential to replace the valve seals promptly to ensure proper valve sealing. Worn Piston Rings: If the engine piston rings are worn or stuck, engine oil can enter the combustion chamber. The most direct and thorough solution in this case is to perform an engine overhaul, replacing both the piston rings and valve seals. Excessive Piston Clearance: For excessive piston clearance, simply replacing the piston rings is sufficient. Additionally, regular cleaning of carbon deposits on the piston rings is recommended as a preventive measure against oil burning.