Fuel additives for reducing low-speed pre-ignition events

A method for preventing or reducing low speed pre-ignition events in a spark-ignition internal combustion engine is provided. The method comprises supplying a lubricant composition to the engine, the lubricant composition comprising a primary additive having a structure given by the following formula (I): # imgabs0 # or a salt thereof. R1 and R2 are independently H, a C1-C20 hydrocarbyl group, a carboxyl group, an ester, an amide, a ketone, an ether or a hydroxyl group. R3 and R4 are independently H, a C1-C20 hydrocarbyl group, a carboxy group, an ester, an amide, a ketone, an ether, an amino or hydroxyl group, or wherein R3 and R4 are part of a cyclic group. And R5 is a C1-C100 hydrocarbyl group, a carboxyl group, an ether or a hydroxyl group. Finally, p is 0 to 2, n is 1 to 5, m is 0 to 2, and p + n + m is less than 6. 提供了用于防止或减少火花点火式内燃发动机中的低速早燃事件的方法。所述方法包括向所述发动机供应润滑剂组合物，所述润滑剂组合物包含具有由下式(I)给出的结构的主要添加剂：#imgabs0#或其盐。R1和R2独立地是H、C1-C20烃基基团、羧基基团、酯、酰胺、酮、醚或羟基基团。R3和R4独立地是H、C1-C20烃基基团、羧基基团、酯、酰胺、酮、醚、氨基或羟基基团，或者其中R3和R4是