Lubricating oil composition

Details Lubricating oil composition Lubricating oil composition

2007-07-10

2011-12-13

Marcheschi, Michael (Department: 1775)

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

Lubricants or separants for moving solid surfaces and...

Organic compound containing boron

C508S162000, C508S370000, C508S378000, C508S584000, C508S154000, C508S175000, C508S460000, C508S586000

Reexamination Certificate

active

08076274

ABSTRACT:
A lubricating oil composition for a heavy duty diesel engine comprises a base oil, at least 0.6 mass % of an ash-free antioxidant and an overbased magnesium-containing detergent. The detergent provides greater than 0.05 mass % Mg based on the mass of the composition. Bore polishing in the engine is reduced for a given level of exhaust gas ash production.

REFERENCES:
patent: 6423670 (2002-07-01), Locke et al.
patent: 6605572 (2003-08-01), Carrick et al.
patent: 6720293 (2004-04-01), Bovington et al.
patent: 7018958 (2006-03-01), Arrowsmith et al.
patent: 2001/0036906 (2001-11-01), Locke et al.
patent: 2006/0116299 (2006-06-01), Arrowsmith et al.
patent: 2006/0116300 (2006-06-01), Arrowsmith et al.

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