What is the Difference Between Two-Stroke Oil and Four-Stroke Oil?

[Erick]

The difference between two-stroke oil and four-stroke oil lies in the formulation of the two oils. The structural design of two-stroke and four-stroke engines differs, leading to different requirements for the oil. Two-stroke engines do not require oil to withstand as high temperatures. More details are as follows: 1. Function of Engine Oil: Engine oil, also known as motor lubricant, serves to lubricate the engine, assist in cooling, and provide anti-corrosion and anti-rust protection. When the engine is operating, its internal components move at high speeds, reaching temperatures between 400°C and 600°C. Using lubricating oil helps reduce wear on these internal parts. 2. Composition of Engine Oil: Engine oil primarily consists of base oil and additives. The base oil is the main component of lubricating oil, determining its fundamental properties, while additives compensate for any performance shortcomings of the base oil. Engine oil extends the lifespan of engine components and improves harsh working conditions. Generally, engine oils on the market can be categorized into mineral oils and synthetic oils. The type of oil suitable for a car can be found in the vehicle's user manual.