What Causes Oil Burning in Buick Vehicles?
2 Answers
Oil burning can be caused by deteriorated engine oil or poor oil quality. Below is an introduction to Buick vehicles: 1. Overview of Buick: An international premium automobile brand. Owned by General Motors, it adheres to the philosophy of 'Quiet Luxury, Intelligent Journey,' integrating globally leading technologies to deliver safe, serene, and intelligent driving experiences. 2. Basic Introduction to Buick: Buick is a mid-to-high-end brand marketed by General Motors in the United States, Canada, and China. It is sold in North America, China, CIS countries, and the Middle East.
Having driven a Buick for nearly a decade, I’ve got plenty to say about oil burning. The most common issue is hardened valve stem seals—when they age and lose elasticity, they can’t contain the oil under high temperatures, letting it leak down the valve stems into the combustion chamber. Blue smoke from the exhaust is a classic sign. Another key culprit is the piston rings, especially when the oil control rings get clogged with carbon deposits and fail to scrape oil off the cylinder walls, leading to burning. Some older cars may also suffer from a clogged PCV (positive crankcase ventilation) system, where excessive crankcase pressure forces oil into the intake manifold. Last time I went for maintenance, the mechanic mentioned that aging turbocharger seals are another major cause of oil consumption. If you notice a sudden increase in oil consumption, get it checked immediately—don’t wait until you’re facing an engine overhaul due to cylinder scoring.
