What does GF-5 mean on the engine oil bottle?
1 Answers
GF-5 engine oil indicates that it is an SN-grade oil, which is the highest grade, and has passed GF-5 certification. Here is some relevant information: 1. Engine oil: Engine oil, also known as engine lubricant (English name: Engine-oil), has a density of approximately 0.91×10³ (kg/m³). It serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine. It is often referred to as the "blood" of a car. 2. Requirements: As a type of machinery, engines have specific requirements for lubricants, similar to other mechanical systems. These include having an appropriate viscosity, as well as certain anti-oxidation, anti-wear, anti-corrosion, and viscosity-temperature performance characteristics.