What are the reasons for excessive oil consumption in a car?
1 Answers
Reasons for excessive oil consumption in a car are as follows: 1. Carbon deposits: Due to the inconsistency between domestic fuel quality and international standards, a large amount of carbon deposits can easily form in the combustion chamber during engine operation. Carbon deposits are the root cause of various engine problems. Carbon deposits accumulate in the piston grooves, causing the piston rings to stick together, which prevents them from sealing properly. The 'stuck' piston rings significantly reduce the oil sealing capability. Additionally, sludge can clog the oil return holes, preventing the oil from returning normally and leading to increased oil consumption. Carbon deposits also exacerbate wear between the piston and cylinder walls, creating excessive gaps that allow oil to enter the combustion chamber. 2. Corrosion and aging of valve stem seals: Corrosion and aging of valve stem seals result in poor sealing. Valve stem seals are one of the most prone-to-wear components in the engine, and this issue is common in cars with over 100,000 kilometers of driving. Aging of the front and rear crankshaft seals: Continuous and extensive contact with oil, along with impurities in the oil and temperature changes in the engine, gradually weakens the sealing effect of the front and rear crankshaft seals, leading to oil seepage or leakage. Damage to the oil seal between the turbocharger and intake pipe: The main reason for this is excessively long oil change intervals or the use of inferior oil, which results in insufficient lubrication and cooling of the floating turbo main shaft, thereby damaging the oil seal. 3. Clogged air filter: A clogged air filter restricts airflow, reducing intake pressure and creating a vacuum that draws oil into the combustion chamber, causing oil consumption. A clogged oil filter also leads to increased oil consumption.
