What kind of oil is used for maintenance at 4S stores?
1 Answers
Theoretically, 4S stores use bulk-packaged 5W-30 Mobil 1 synthetic oil. However, upon special request, 0W-40 Mobil 1 synthetic oil can also be used. There are three types of engine oil: mineral oil, semi-synthetic oil, and fully synthetic oil. Semi-synthetic oil falls between mineral oil and fully synthetic oil, containing a large amount of anti-corrosion additives to improve the stability and oxidation resistance of the oil. Below is an introduction to these types of engine oil: 1. Mineral oil: Mineral oil is the residual oil left after gasoline and heavy oil are extracted from petroleum. It is a natural oil with many impurities, cheaper compared to semi-synthetic and fully synthetic oils, but offers poorer lubrication for the engine and has a shorter service life. 2. Semi-synthetic oil: Semi-synthetic oil is between mineral oil and fully synthetic oil, containing a large amount of anti-corrosion additives to improve the stability and oxidation resistance of the oil. 3. Fully synthetic oil: Fully synthetic oil is the highest quality and most durable among the three types of engine oil, and also the most expensive. Generally, it can be used for 10,000 to 12,000 kilometers in passenger cars without deteriorating.