Motorcycle engine lubricant

摘要

A motorcycle having an engine and a clutch may be lubricated by supplying to the engine, but not to the clutch a lubricant of an oil of lubricating viscosity, an overbased detergent, a dispersant, a metal salt of a phosphorus acid, and a hydroxyalkyl-substituted imidazoline having a hydrocarbyl substituent of at least about 8 carbon atoms and a hydroxyalkyl substituent having 2 to 8 carbon atoms.

主权项

1. A method for lubricating a motorcycle having an engine and a clutch and having a displacement of greater than 200 and up to about 3500 cm3, comprising supplying to the engine thereof, but not to the clutch, a lubricant comprising
(a) an oil of lubricating viscosity (b) an overbased detergent (c) a dispersant (d) 0.1 to 2 percent by weight of a metal salt of a phosphorus acid and (e) 0.1 to 2 percent by weight of a hydroxyalkyl-substituted imidazoline consisting of a material of the structurewhere R is a hydrocarbyl substituent of at least about 8 carbon atoms.