What Does Oil Shear Value Mean?
1 Answers
Oil shear value indicates the oil film strength of engine oil under high shear conditions at 150°C. The higher the value, the greater the strength. Below is an introduction to related content: German Cars: Most German cars require an HTHS greater than 3.5. French Cars: Most French cars require an HTHS greater than 3.2. Others: American, Japanese, Chinese, and Korean cars generally require an HTHS around 2.9. Aggressive Driving or Long-Distance High RPM: For example, if you frequently drive above 3000 RPM, the HTHS requirement should be higher. It is recommended to use engine oil with an HTHS > 3.5.