Patent ID: 6306801
Filing Date: 2001-10-23
Classification: C10M,C10N

Abstract:
A lubricating oil composition comprising:a lubricating base oil;(A) 0.5 to 20% by mass of acylated bissuccinimide represented by the following general formula (1): ##STR13##where R.sup.1 and R.sup.2 are each independently a straight or branched alkyl group or alkenyl group having 40 to 400 carbon atoms; R.sup.3 is an alkoxy group having 1 to 24 carbon atoms or a hydroxy(poly)oxyalkylene group represented by --O--(R.sup.4 O).sub.c H where R.sup.4 is an alkylene group having 1 to 4 carbon atoms, and c is an integer of 1 to 5; and a is an integer of 1 to 4, b is an integer of 0 to 3, and a+b=1 to 4;(B) 0.05 to 0.3% by mass of zinc dithiophosphate in terms of the phosphorous content; and(C) 0.5 to 4.0% by mass of a metallic detergent in terms of the sulfated ash content, based on the total mass of the composition.