A multi-grade lubricating oil including a (meth)acrylate polymer with at least two distinct molecular weight arms and a blend of heavier and lighter base oils with increased amounts of the heavier base oil to achieve SAE grade performance. The compositions herein achieve SAE certifications as lower CCS viscosities at target kinematic viscosities for multi-grade oils.
一种多级润滑油,包括具有至少两个不同分子量臂的(甲基)
丙烯酸酯聚合物以及较重和较轻基础油的混合物,其中较重基础油的用量增加,以达到 SAE 等级性能。此处的组合物在多级油的目标运动粘度下可达到较低的 CCS 粘度,从而获得 SAE 认证。