| abstract |
The invention relates to marine lubricating oils comprising from 15 to 95% by weight of a Group III base oil having a kinematic viscosity at 100 degrees C of 4 to 12 cSt, from 0.5 to 55% by weight of a co-base oil having a kinematic viscosity at 100 degrees C of 29 to 1000 cSt, 0.1 to 2.0% by weight of a molydithiocarbamate friction modifier of 0.1 to 2, 0% by weight of a zinc dithiocarbamate-based anti-wear additive, and from 2 to 30% by weight of other lubricating oil additives. The co-base oil is selected from the group consisting of group I, group IV, group V and combinations thereof. The invention also relates to methods of making and using marine lubricating oils. |