What Types of Cars Are Suitable for Castrol 10w40 Engine Oil?

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Castrol Gold 10w40 is suitable for naturally aspirated engine models. Castrol 10w40 is available in both synthetic and mineral oil variants. The main differences between them are: synthetic oil has a wider operating temperature range, longer service life, and higher cost. For the same oil film requirements, synthetic oil can achieve the desired performance with a lower viscosity. Below are introductions to several types of engine oils: 1. Mineral Oil: Mineral oil is the residue left after gasoline and heavy oil are refined from petroleum. Although mineral oil is a natural oil, it contains more impurities. It is cheaper compared to semi-synthetic and full-synthetic oils but offers poorer lubrication for the engine and has a shorter service life. 2. Semi-Synthetic Oil: Semi-synthetic oil falls between mineral oil and full-synthetic oil. It contains a large number of anti-corrosion additives to enhance the oil's stability and oxidation resistance. 3. Full-Synthetic Oil: Among these three types of engine oils, full-synthetic oil is the highest in quality and durability, and it is also the most expensive. Generally, it can maintain its quality for 10,000 to 12,000 kilometers in typical passenger cars.