What kind of engine oil should be used for turbocharged cars?
2 Answers
It is recommended to use fully synthetic engine oil with SN0W-40 or SN0W-30. More information on using engine oil for turbocharged engines is as follows: 1. The turbocharger activates when the engine speed reaches 3500 rpm and quickly increases to 6000 rpm. The higher the engine speed, the stronger the lubricating oil's resistance to shear must be. 2. Turbocharged engines have excellent performance and require higher standards for lubricating oil in terms of lubrication, sealing, heat dissipation, and rust prevention. 3. Engine oil should be added appropriately: Excessive oil addition will reduce the engine's output power, and the oil may enter the combustion chamber and participate in combustion, leading to high fuel consumption.
Turbocharged engines generate high temperatures due to the high-speed rotation of the turbocharger. Conventional engine oil tends to form sludge under high temperatures, leading to blockages that can damage the turbo or reduce its efficiency. That’s why I always insist on using full synthetic oil, such as SAE 5W-30 or 0W-40 grades, which offer excellent high-temperature stability and protect the turbo blades. In terms of brands, I prefer Mobil 1 or Castrol, as they are long-lasting. I also maintain a gentle driving habit, avoiding prolonged hard acceleration to prevent overheating and premature oil degradation. Regular oil changes every 5,000 kilometers are crucial—delaying them could result in turbo repairs costing thousands. I recommend choosing oils with API SP or ILSAC GF-6 certification for superior anti-wear performance.
