What Type of Oil is Used in Turbocharged Engines?

[DelRyan]

Fully synthetic oil is currently the most suitable oil for turbocharged engines. The following are the functions of engine oil: 1. Lubrication: There is rapid relative sliding between the piston and cylinder, as well as between the main shaft and bearing shells. To prevent excessive wear of parts, an oil film needs to be established between the two sliding surfaces. A sufficiently thick oil film separates the surfaces of the relatively sliding parts, thereby achieving the goal of reducing wear. 2. Auxiliary Cooling: Engine oil has a relatively low specific heat value and, being inside the engine, does not inherently have a cooling effect. However, during engine operation, the heat energy generated by fuel combustion can be carried back to the oil tank by the oil and then dissipated into the air, assisting the radiator in cooling the engine. The actual cooling effect is provided by the water (or antifreeze liquid) outside the engine casing. 3. Cleaning: High-quality engine oil can carry carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank through circulation. The flow of the lubricating oil washes away the dirt generated on the working surfaces of the parts.