What does the oil grade FE mean?
2 Answers
Oil grade FE is a fuel economy standard used to measure the amount of fuel consumed by a vehicle over a certain distance. The fuel economy indicator of gasoline is related to the characteristics of the engine, the vehicle's weight, speed, various motion resistances such as air resistance, rolling resistance, and climbing resistance, as well as the efficiency and gear ratio of the transmission system. Therefore, the numerical value often differs from the actual situation. There are three evaluation indicators for fuel economy: fuel consumption per unit distance traveled, fuel consumption per unit of transport work, and distance traveled per unit of fuel consumed. In China, the testing mainly focuses on the first indicator.
The FE in oil grades stands for Fuel Economy, primarily indicating that this type of oil helps reduce engine friction, improve fuel efficiency, and decrease fuel consumption. I remember in the API standards, FE is commonly used in oil grades like SN Plus or SP, labeled as resource-conserving. I always look for this symbol when choosing oil because it means less sludge buildup and better engine protection, especially suitable for frequent stop-and-go city driving. Regular oil might make the car consume a bit more fuel, but FE is designed to save some money on gas. I often tell my friends to look for the FE mark on the packaging—it's hassle-free and practical.
