A method for preventing or reducing engine knock or pre-ignition in a high compression spark ignition engine lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that contains (i) a lubricating oil base stock comprising at least one ester including at least one group selected from the group consisting of Formula (1), Formula (2), and Formula (3):
The lubricating oils of this disclosure are useful as passenger vehicle engine oil (PVEO) products.
                            一种在使用润滑油润滑的高压缩火花点火发动机中防止或减少发动机爆震或预燃的方法,其方法是使用一种配制油作为润滑油。配制油的成分包含:(i) 润滑油基础油,包含至少一种酯,其中至少有一个基团选自由式(1)、式(2)和式(3)组成的组:
本公开的润滑油可用作乘用车发动机油(PV
EO)产品。