How many types of engine oil are there?
2 Answers
There are 3 types of engine oil. Below is an introduction to the types of engine oil: Mineral oil: Mineral oil is a commonly used lubricant in the market. It is derived from the useful substances separated during the petroleum refining process, such as gasoline and aviation fuel, and then the remaining base oil is further processed and extracted. Semi-synthetic oil: Semi-synthetic oil is made from semi-synthetic base oil, which is a product of the purification of mineral oil through hydrocracking technology. It is a mixture of mineral oil and fully synthetic oil in a ratio of 4:6. The purity of semi-synthetic oil is very close to that of fully synthetic oil, but its cost is slightly higher than that of mineral oil. It is an ideal transitional product from mineral oil to synthetic oil. Fully synthetic oil: Fully synthetic oil is the highest-grade type of engine oil. It is derived from ethylene and propylene dispersed from natural gas or gas in crude oil, which then undergoes complex chemical reactions such as polymerization and catalysis to form a lubricating fluid composed of large molecules. Essentially, it uses the better components of crude oil, undergoes chemical reactions, and achieves the desired molecular structure under human control.
As a car enthusiast with several years of driving experience, I believe engine oil can be categorized into three main types: mineral oil, semi-synthetic oil, and full synthetic oil. Mineral oil is refined from crude oil, being the most affordable option, but offers average engine protection and oxidizes quickly, making it prone to deterioration. Semi-synthetic oil blends mineral and synthetic components, striking a balance between performance and affordability, which I recommend for daily drivers. Full synthetic oil is chemically synthesized, offering high-temperature stability and easy cold starts, making it ideal for long-distance driving or high-performance engines. I always refer to the manual's recommendations when changing oil—never compromise on the correct type to save money. Additionally, oil viscosity ratings like 5W-30 should match the climate to extend engine life. Regular oil changes every 5,000 to 8,000 kilometers are crucial, and delays should be avoided at all costs.
