Lubricating oil composition

Details Lubricating oil composition Lubricating oil composition

1979-10-12

1981-08-11

Douglas, Winston A.

Compositions

Electrolytes for electrical devices

252 33, 252 332, 252 427, C10M 148

Patent

active

042832942

ABSTRACT:
Lubricating oil compositions suitable for use in marine diesel engines comprise 60 to 85 parts by weight of lubricating oil, 15 to 30 parts by weight of a mixture of more than 50 wt .% of a Group IIa metal overbased detergent and up to 50 wt .% of a Group Ia metal overbased detergent and 0.2 to 5 parts by weight of an antioxidant, provided the weight ratio of the overbased detergent mixture to antioxidant lies between 7.5:1 and 50:1, all parts by weight referring to total active matter of the additive. When used in loop-scavenged crosshead marine diesel engines fouling of air ports with deposits is considerably reduced and there is a satisfactory anti-wear performance.

REFERENCES:
patent: 2943052 (1960-06-01), Carlyle et al.
patent: 3001940 (1961-09-01), Walson et al.
patent: 3907691 (1975-09-01), King et al.
patent: 4123369 (1978-10-01), Miller et al.

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