Which Type of Engine Oil is Suitable for Turbocharged Engines?
2 Answers
Turbocharged engines are suitable for full synthetic engine oil. Compared to naturally aspirated engines, turbocharged engines have greater power, higher operating temperatures, and faster rotational speeds. Such engines have higher requirements for engine oil, and the excellent performance of full synthetic oil can effectively protect the engine under harsh conditions and reduce engine wear. Generally, vehicles equipped with turbocharged engines are recommended to use full synthetic oil. In addition to selecting a suitable engine oil, it is also necessary to maintain the components properly, ensuring the cleanliness of the engine oil and filters to minimize the entry of impurities. This is because the clearance between the turbocharger's rotating shaft and bushing is very small. If the lubricating ability of the oil weakens, it can affect the turbocharger and potentially shorten its lifespan.
I've been changing engine oil for years and driving turbocharged cars for nearly a decade, always preferring full synthetic oils like 0W-40 or 5W-40 with higher viscosity. Why? Turbochargers spin at high speeds and generate heat – conventional mineral oils break down when hot, losing viscosity and lubrication, causing rapid turbo bearing wear. My car is an older German model with a turbo. I tried semi-synthetic oil once, but during long drives, it overheated and caused unstable power. After switching to full synthetic, oil pressure stabilized, the engine ran quieter, and carbon buildup reduced. Regular oil changes are crucial – I check every 7,000-8,000 km, more frequently in hot weather or during highway driving. Always choose oil with API SP certification that matches the manual's requirements – don't skimp. Smooth driving is what matters. Using low-quality oil long-term can ruin the turbo prematurely, and repairs cost several times more than good oil.
