Ashless lubricating oil formulations for natural gas engines

Details Ashless lubricating oil formulations for natural gas engines Ashless lubricating oil formulations for natural gas engines

C - Chemistry, Metallurgy

10

M

C10M 133/56 (2006.01) C10M 141/12 (2006.01)

Patent

CA 2299287

The present invention provides an ashless lubricating oil composition that improves the corrosion properties in natural gas engines. The ashless lubricating oil composition comprises: a) a major amount of base oil of lubricating viscosity; b) from about 1 to 6 wt.% of an untreated polyalkylene or polyalkenyl succinimide dispersant; and c) from about 1 to 6 wt.% of a borated polyalkylene or polyalkenyl succinimide dispersant.

La présente invention concerne une composition d'huile lubrifiante sans cendres améliorant les propriétés anticorrosion de moteurs au gaz naturel. La composition d'huile lubrifiante sans cendres comprend: (a) une quantité principale d'huile de base de viscosité lubrifiante; (b) environ 1 à 6 % en poids d'un dispersant polyalkylène ou polyalcényle succinimide insaturé; et (c) environ 1 à 6 % en poids d'un dispersant polyalkylène ou polyalcényle succinimide boraté.

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