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What Are the Types of Engine Oil?

2 Answers

Gomes

07/28/25 8:35pm

Engine oil can be classified into the following 3 types: 1. Mineral oil: Replace every 5,000 kilometers or 3 months. 2. Semi-synthetic oil: Replace every 7,500 kilometers or 6 months. 3. Full-synthetic oil: Replace every 10,000 kilometers or 1 year. Below is some relevant information: 1. Replacement intervals are not fixed: The replacement intervals for car engine oil are not fixed. This depends on the car brand and engine characteristics. Some vehicles require replacement after 7,500 kilometers, while others need replacement after 10,000 kilometers. 2. Lubrication and cleaning: Engine oil lubricates and cleans the car's engine and also prevents rust. Therefore, car owners place great importance on engine oil. After driving 5,000 kilometers, the engine oil will turn black. In fact, this is a normal phenomenon. Additionally, frequent replacement of engine oil can affect its cleaning function.

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DiDerek

08/12/25 1:21am

I've been driving for over 20 years and have used various types of engine oil. The most common is mineral oil, which is cheap but has a short change interval, basically needing replacement every six months or 5,000 kilometers, suitable for budget-conscious car owners. Semi-synthetic oil is slightly more expensive with better balanced performance, typically changed annually or at 8,000 kilometers, which I often use for daily commuting. Full synthetic oil is premium, offering the best engine protection, with high temperature and wear resistance, and viscosity like 5W-30 ensures quick starts in winter and strong protection in summer. After switching to it, I noticed reduced noise and smoother acceleration. Don't overlook the API rating, such as SP grade which is compatible with modern engines and has low emissions. Regularly check the oil color; if it's dark black or has impurities, change it immediately to avoid costly overhauls.

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