What Causes Engine Oil Burning in Cars?

[McJames]

Engine oil burning is related to the HTHS (High Temperature High Shear) of the oil. You can try using oil with a higher HTHS value, which refers to the high-temperature high-shear viscosity. Vehicles such as turbocharged engines, large-displacement sedans, or SUVs should use high-performance full synthetic oil with an HTHS greater than 3.5 and a high viscosity index. Currently, many car models experience engine oil burning, which occurs when oil enters the engine's combustion chamber and mixes with the air-fuel mixture for combustion. Oil burning can lead to rapid damage of the oxygen sensor, increased carbon deposits in the combustion chamber, unstable idling, poor acceleration, increased fuel consumption, and excessive exhaust emissions. In severe cases, insufficient engine lubrication can cause irreparable damage or even engine failure, significantly increasing repair costs and posing potential safety hazards.