What is the knowledge about car engine oil?
2 Answers
Engine oil, also known as engine lubricant (English name: Engine-oil), plays multiple roles such as lubrication and wear reduction, auxiliary cooling, sealing and leak prevention, rust and corrosion protection, and shock absorption. It is often referred to as the 'blood' of a car. Composition of engine oil: Engine oil consists of two main components: base oil and additives. The base oil is the primary constituent of lubricating oil, determining its fundamental properties, while additives compensate for and enhance the performance shortcomings of the base oil, providing certain new characteristics. Additives are an essential part of lubricating oil. Classification of engine oil: Engine oil is categorized into three types: mineral oil, semi-synthetic oil, and full-synthetic oil. The replacement intervals for these three types of engine oil vary. Generally, mineral oil should be replaced every six months or 5,000 kilometers, semi-synthetic oil every six months or 7,500 kilometers, and full-synthetic oil every six months or 10,000 kilometers.
Automotive engine oil knowledge is truly the golden rule in vehicle maintenance. Engine oil is like the blood of an engine, primarily responsible for three major tasks: lubricating the metal components inside the engine to reduce friction and wear on high-speed moving parts like pistons and bearings; cooling the engine by absorbing heat generated from high temperatures to prevent overheating and explosions; and cleaning functions, trapping fuel residues and dust to prevent clogging of pipelines. I often remind novice drivers that forgetting to change the oil is like neglecting a physical check-up, with serious consequences. Remember to change it every 5,000 to 10,000 kilometers, depending on your driving habits and the car's manual. When selecting oil, pay attention to the viscosity grade, such as 5W-30, which represents easy flow during cold starts and high-temperature protection. Don't skimp by using low-quality oil, as it can shorten your car's lifespan. Regularly check the oil level by pulling out the dipstick after turning off the engine; if it's between the marked lines, you're good to go. This ensures your beloved car runs smoother and more reliably, saving money and avoiding major repair troubles.
