What is the function of motor vehicle engine oil?
2 Answers
The function of motor vehicle engine oil is: lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. Motor vehicle engine oil consists of two parts: base oil and additives. The base oil is the main component of lubricating oil, determining its basic properties. Additives can compensate for and improve the shortcomings of the base oil's performance, imparting certain new properties, making them an important part of lubricating oil. The method for changing motor vehicle engine oil is: 1. Start the vehicle engine for preheating; 2. Unscrew the oil drain bolt; 3. Remove the filter element; 4. Apply new oil to the interface gasket of the new filter element; 5. Pour the new oil into the oil pan; 6. Check for leaks in the lower part of the engine and inspect the oil dipstick before starting the engine for testing.
Engine oil is the lubricant for car engines, primarily reducing friction and wear between metal parts to ensure smooth operation. It helps dissipate heat, carrying away heat to prevent engine overheating and damage, which is especially crucial during high-speed driving in summer. It also cleans the interior, flushing away carbon deposits and impurities to avoid clogging oil passages and affecting performance. By sealing cylinders, it prevents gas leaks, improving compression efficiency and saving fuel. Additionally, it provides anti-corrosion and anti-rust protection, extending component lifespan. Experience tells me that timely oil changes are essential. Although synthetic oil is more expensive, it lasts longer. Before long trips, I always check the dipstick—low oil levels can cause the car to shake and lose power, and addressing it early saves on major repair costs.
