How to Distinguish Between Synthetic and Semi-Synthetic Engine Oil?

[AvaMarie]

Distinguishing between synthetic and semi-synthetic engine oil mainly involves the following aspects: 1. Semi-synthetic oil is a product based on mineral oil, refined through hydrogenation. Synthetic engine oil is derived from ethylene and propylene dispersed from natural gas in crude oil or natural gas, refined into high molecular lubricants through complex chemical reactions such as polymerization and catalysis. 2. For the same oil film requirements, synthetic oil has lower viscosity, while semi-synthetic oil has higher viscosity compared to synthetic oil. 3. Semi-synthetic oil is mainly used for economical vehicles, while full synthetic oil is primarily used for luxury vehicles. 4. The amount of additives differs, with more in full synthetic oil and less in semi-synthetic oil.