What Type of Vehicles is 0W-40 Engine Oil Suitable For?

[DiZane]

0W-40 engine oil is commonly used in German cars, such as Volkswagen brand vehicles, which typically recommend 40-grade oil. Japanese cars, on the other hand, usually use 0W-20 engine oil. Below are the relevant details: 1. Reasons for German cars consuming oil: German engines use cast iron cylinder blocks, resulting in different expansion coefficients between the cylinder block and piston rings. At high temperatures, this can cause the piston to seize, so the engine design requires a larger gap between the cylinder block and piston. However, a larger piston gap increases noise, necessitating the use of high-viscosity oil to fill the gaps. 2. Introduction to 0W-40: "0W" indicates excellent low-temperature startup performance, capable of meeting engine startup requirements even at -35°C. "40" represents medium viscosity at 100°C, corresponding to an oil kinematic viscosity of 14.5 cSt.