How to Differentiate Between Full Synthetic Oil and Semi-Synthetic Oil?
1 Answers
Full synthetic oil and semi-synthetic oil differ in the following aspects: 1. Different base oils: Semi-synthetic oil uses Group III base oil, while full synthetic oil is a blend of Group III, IV, and V base oils. Full synthetic oil has a higher grade of base oil compared to semi-synthetic oil. Full synthetic oil provides the best cooling capability and fluidity for the engine. Turbocharged engines, which have more complex structures, require higher-quality oil for maintenance. 2. Different replacement intervals: Semi-synthetic oil should be replaced every six months or 7,500 kilometers, while full synthetic oil should be replaced every year or 10,000 kilometers. Additionally, full synthetic oil has better cleaning and oxidation resistance properties than semi-synthetic oil, which is why its replacement interval is longer, typically around one year or 10,000 kilometers. 3. Different applicable temperature ranges: Full synthetic oil has a broader operating temperature range. Under the same working conditions, full synthetic oil can protect the engine with a lower viscosity, whereas semi-synthetic oil has relatively higher requirements. For older engines with some wear, semi-synthetic oil, being more viscous than full synthetic oil, provides better protection and reduces wear.
