Low phosphorous engine oil compositions and additive composition

Details Low phosphorous engine oil compositions and additive composition Low phosphorous engine oil compositions and additive composition

1993-08-27

1996-10-29

Medley, Margaret

Solid anti-friction devices, materials therefor, lubricant or se

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

508373, 508376, C10M14110

Patent

active

055694055

ABSTRACT:
An engine oil composition having a base oil, an ashless dispersant, a metal-containing detergent, zinc dithiophosphate and a sulfur-containing phenol derivative. Examples of sulfur-containing phenol derivative include 2,4-bis{(octylthio)methyl}-o-cresol, 2,2-thiodiethylenebis{3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate}, and tridecyl 2-(3,5-di-ti-butyl-4-hydroxybenzylthio)acetate.

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