Does Higher Engine Oil Viscosity Lead to Higher Fuel Consumption?

[DelMax]

Higher engine oil viscosity does lead to higher fuel consumption. Below is a detailed introduction to the types of engine oil grades: 1. High-Temperature Type: For example, SAE20 to SAE50. The numbers indicate the viscosity at 100°C, with higher numbers representing higher viscosity. 2. Low-Temperature Type: For example, SAE0W to SAE25W. The "W" stands for "Winter," and the smaller the number, the lower the viscosity and the better the low-temperature fluidity. 3. All-Season Type: For example, SAE15W/40, 10W/40, 5W/50. These indicate that the viscosity grades at low temperatures meet the requirements of SAE15W, 10W, and 5W, respectively, while the viscosity grades at high temperatures meet the requirements of SAE40 and 50, making them suitable for both winter and summer use.