What's the Difference Between Semi-Synthetic and Full Synthetic Engine Oil?
1 Answers
The differences between semi-synthetic and full synthetic engine oil: 1. Different base oil grades: Semi-synthetic oil uses Group III base oil; Full synthetic oil is made from Group IV base oil with additives. 2. Different replacement intervals: Semi-synthetic oil has shorter change intervals, typically every 8 months or 8,000 km; Full synthetic oil has longer change intervals, usually once a year or every 10,000 km. 3. Different oil performance: Semi-synthetic oil has lower stability and weaker sludge resistance; Full synthetic oil has higher stability and stronger sludge resistance. 4. Different vehicle applications: Semi-synthetic oil is mostly used for economy cars, while full synthetic oil is mainly used for luxury vehicles.