What kind of engine oil is better for turbocharged cars?
2 Answers
Turbocharged cars are better suited for full synthetic engine oil. The working principle of a turbocharger is: using the exhaust gases from the engine's exhaust outlet as power to drive the turbine wheel in the turbo chamber. The turbine wheel is directly connected to the compressor wheel in the compressor housing. One end of the compressor housing is connected to the air filter, while the other end compresses the air drawn in from the air filter into the engine's cylinders, thereby increasing the amount of air in the engine. The functions of engine oil are: 1. To alleviate friction and high temperatures; 2. To reduce gas leakage and prevent external pollutants; 3. To prevent contact between water, air, acidic harmful gases, and engine components; 4. To buffer the pressure rise at the engine cylinder ports; 5. To flush away contaminants generated on the working surfaces of components.
I've been driving a turbocharged car for almost eight years. Initially, I used conventional mineral oil, but the engine noise increased, and fuel consumption rose. It wasn't until a friend advised me to switch to full synthetic oil, like the commonly used 5W-30 viscosity, that things improved. When the turbo operates at high speeds, temperatures can exceed 200 degrees Celsius. Synthetic oil molecules are more stable, less prone to oxidation or breakdown, and better at protecting the turbo bearings from wear. Choose reputable brands like Shell Helix; even their economical options are durable. Don't forget to follow the maintenance manual's specified viscosity and avoid cheap, low-quality oil to prevent turbo failures that could cost thousands in repairs. Regularly check the oil level every 5,000 to 6,000 kilometers to avoid sludge buildup that affects performance. My experience has taught me that good oil can more than double your car's lifespan, provide smoother driving, and is worth every penny.
