How to Distinguish Between Semi-Synthetic and Full Synthetic Engine Oil?
1 Answers
The most straightforward method is to check the manufacturer's label on the bottle packaging. Full synthetic oil will be clearly marked. The differences between semi-synthetic and full synthetic engine oils are as follows: 1. Different Composition: Semi-synthetic oil is based on mineral oil, refined through hydrogenation. Synthetic engine oil is derived from ethylene and propylene dispersed from natural gas or crude oil, undergoing polymerization, catalysis, and other complex chemical reactions to form high-molecular lubricants. 2. Different Usage Duration: Full synthetic oil has a wider temperature range and a longer service life. 3. Different Viscosity: For the same oil film requirements, synthetic oil has lower viscosity, while semi-synthetic oil has higher viscosity compared to synthetic oil.