What Types of Vehicles Are Suitable for 5W40 Engine Oil?
1 Answers
5W40 fully synthetic engine oil is suitable for German-made vehicles, cars over 7 years old, and vehicles frequently driven on highways. The details are as follows: German-made vehicles: German cars usually come with turbocharged engines that have relatively large clearances, making 5W40 (higher viscosity) oil the ideal choice. European vehicles also typically use 40-viscosity oil. Vehicles over 7 years old: As engines age, wear and tear become more severe. To better protect the engine, higher viscosity 5W40 oil is recommended. Vehicles frequently driven on highways: Engine heat generation and wear are significantly higher under such conditions. Meaning of 5W40 oil: The number 5 before the letter W: Represents low-temperature fluidity. The smaller the number, the better the oil's low-temperature fluidity. The number 40 after the letter W: Represents high-temperature viscosity. The larger the number, the better the oil's high-temperature viscosity.