How to Improve the Kinematic Viscosity of Engine Oil?

[DaniellaRose]

The following are methods to improve the kinematic viscosity of engine oil: 1. Use viscosity improvers: Add about 5% viscosity improvers, such as ethylene-propylene viscosity improvers or chloroprene rubber viscosity improvers. This method is low-cost and can also enhance the viscosity index, making it suitable for cold starts. 2. Use high-viscosity base oils: Incorporate 25% of high-viscosity base oils like 500SB or bright stock 150BS. Since these base oils have a viscosity ranging between 24~30, they can be used for adjustment, though this method is more costly. Additional information: 1. Winter oil grades: 0W, 5W, 10W, 15W, 20W, 25W. The symbol 'W' stands for Winter, and the smaller the number before 'W', the lower the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable minimum temperature. 2. Summer oil grades: 20, 30, 40, 50. The larger the number, the higher the viscosity, and the higher the applicable maximum temperature.