What are the six major functions of engine oil?
1 Answers
The six major functions of engine oil are as follows: Lubrication and friction reduction: Forms an oil film on the surfaces of two sliding components to prevent friction during operation, ensuring smooth movement of the parts. Cleaning and dispersion: High-quality engine oil can flush away surface contaminants on components through oil flow, adsorb tiny metal fragments inside the engine, and then rely on the piston oil ring to scrape them down into the oil pan. Cooling and temperature reduction: When the engine operates, it generates high temperatures. When the oil reaches the operating parts, it absorbs heat and then carries the heat away, assisting in heat dissipation for the components. Sealing and leakage prevention: Refers to forming a seal between the piston rings and pistons through the oil film method, preventing combustion exhaust gases from entering the crankcase. Rust and corrosion prevention: High-quality engine oil can adhere to component surfaces, preventing contact with air, acidic substances, and harmful gases, protecting the engine from corrosion by atmosphere and water. Shock absorption and buffering: When the pressure in the engine cylinder increases suddenly, the load on the pistons, piston rings, connecting rods, and crankshaft bearings becomes very high. This load is transmitted and lubricated through the bearings, cushioning the impact load.
