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How to Identify Whether Motor Oil is Semi-Synthetic or Fully Synthetic?

1 Answers

SanEthan

07/29/25 10:34pm

There are two methods to determine whether motor oil is semi-synthetic or fully synthetic: 1. Packaging: Check the outer packaging of the oil, which usually indicates the type of oil. 2. Oil color: The color of the oil can also be used to distinguish between types. Mineral oil tends to have a darker color, while synthetic oil is lighter, appearing as a transparent light yellow. If labeled 'Full-Synthetic,' it is fully synthetic oil. The differences between semi-synthetic and fully synthetic oils are as follows: 1. Semi-synthetic oil is based on mineral oil refined through hydrogenation. Synthetic motor oil is derived from ethylene and propylene dispersed from natural gas or crude oil, undergoing polymerization, catalysis, and other complex chemical reactions to produce high-molecular lubricants. 2. Fully synthetic oil has a broader temperature range and longer service life. 3. For the same oil film requirements, synthetic oil has lower viscosity, while semi-synthetic oil has higher viscosity compared to synthetic oil. 4. Semi-synthetic oil is mainly used for economical vehicles, whereas fully synthetic oil is primarily used for luxury vehicles. 5. The amount of additives differs, with fully synthetic oil containing more and semi-synthetic oil containing fewer additives. 6. Fully synthetic oil has better anti-aging stability. 7. Fully synthetic oil provides better engine protection. 8. The price of fully synthetic oil is higher than that of semi-synthetic oil.

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