Should the Prado use 0w20 or 5w30?
1 Answers
The Prado requires the use of 5w30 viscosity engine oil, as 0w20 viscosity oil is too low for its engine. The domestic version of the Prado is equipped with a 3.5-liter naturally aspirated V6 engine, while the Middle Eastern version features a 4.0-liter naturally aspirated engine. These engines are large-displacement, multi-cylinder naturally aspirated units, hence requiring 30 viscosity oil. Here are the relevant details: 1. Using the appropriate oil: During normal engine operation, the oil forms a protective film on the surfaces of various engine components, reducing wear and friction between parts. If the oil viscosity is too low, it cannot maintain a stable protective film during operation, which can accelerate engine wear. Engines operate at high temperatures, and low-viscosity oil tends to thin out under these conditions, making it unsuitable. 2. Oil specifications: The 'w' in oil grades stands for 'winter.' The number before 'w' indicates the oil's low-temperature flow performance. For example, 0w oil can flow normally at -35°C, while 5w oil can flow at -30°C. The number after 'w' represents the oil's high-temperature viscosity—the higher the number, the higher the viscosity. When purchasing oil, focus on the number after 'w' and choose the viscosity that best suits your vehicle's engine.
