What is the Difference Between 5w20 and 5w30?
1 Answers
Here are the detailed differences between 5w20 and 5w30 engine oils: 1. Fuel consumption: 20-grade oil offers better fuel economy, is more fuel-efficient, but comes at a higher price. 5W30 oil has higher viscosity limits, resulting in greater engine operating resistance, higher fuel consumption, but better sealing performance and quieter engine operation. 2. Low-temperature performance: Both 5W20 and 5W30 oils have the same low-temperature performance. The difference lies in the number after the W, which represents the oil's high-temperature viscosity. The larger the number, the higher the viscosity. 3. Oil selection: When choosing oil viscosity, consider the age of the vehicle. Newer vehicles with smaller engine component clearances should use lower viscosity oil, while vehicles with significant engine wear should opt for higher viscosity oil.