Why does the Buick GL8 consume engine oil?
1 Answers
Factors that exacerbate engine oil consumption leading to burning oil include: fuel quality, driving conditions, driving habits, and maintenance practices. The following negative conditions may occur in the vehicle: 1. Carbon deposits form in the combustion chamber, causing the piston rings to stick and resulting in poor sealing. 2. Sludge forms in the lubrication system, blocking the oil return holes of the oil control rings and reducing their oil-scraping performance. 3. Wear occurs between the pistons and cylinder walls. 4. The valve seals corrode or age, leading to sealing failure. 5. Additionally, modern vehicles are equipped with a crankcase ventilation system (PCV valve), and if it malfunctions, it can also accelerate engine oil consumption.