What is the difference between 0w20 and 0w30?
1 Answers
0w30 engine oil and 0w20 engine oil differ in the following aspects: 1. High-temperature kinematic viscosity: The kinematic viscosity of 20-grade oil at 100 degrees is around 8, while that of 30-grade oil is about 11, making 30-grade oil more viscous than 20-grade oil. 2. Vehicle compatibility: 0w-20 and 0w-30 are produced to meet the design requirements of different engines, so the oil viscosity should be selected based on the engine's specifications. For example, Japanese, Korean, and American car models typically use 0w-20 oil viscosity, while European cars require 0w-30 or higher viscosity oil.