黃山休寧縣歙縣殼牌shell潤滑脂-齒輪油經營The main differences between NLGI 0, 1, 2, and 3 are consistency, penetration, applicable temperature range, and application. Here are the specific distinctions: Consistency and penetration: The higher the NLGI number, the greater the consistency and the lower the penetration. NLGI and 00 have lower consistency and higher penetration, with NLGI 00 being less viscous than NLGI 0 and having a higher penetration value by 1. Temperature range and application scenarios: NLGI 0 grease: Suitable for applications requiring lower consistency and better fluidity, such as lubrication of high-speed bearings small gears, and other components1. NLGI 1 grease: With a softer texture, it is ideal for low-temperature and low-speed environments. It is used agricultural machinery, refrigeration equipment, or some light-load devices, as well as centralized lubrication systems or components requiring low-viscosity lubrication