高性能汽车齿轮和液压油 SAE 90 140 80W90 85W140 75W90 75W85

Base oil is the primary raw material used to produce lubricants. It makes up 70–95% of the finished lubricant.

Base Oil

Additives are chemical compounds blended with base oils to improve performance. They typically make up 5–30% of the final product.

Additives

VI stands for Viscosity Index, a measurement of how much an oil’s viscosity changes with temperature.

VI