| abstract |
(Ii) one or more additives; (ii) at least 25% by weight of a first Fischer-Tropsch derived base oil having a kinematic viscosity in the range of 6 to 10 mm 2 / sec at 100 ° C .; and (iii) Selected from a second Fischer-Tropsch derived base oil having a kinematic viscosity in the range of 15 to 30 mm 2 seconds at 100 ° C. at least 10% by weight, bright stock, deasphalted cylinder oil (DACO), polyisobutylene and mixtures thereof A lubricating composition comprising: a lubricating composition, wherein the lubricating composition has a TBN of at least 20 mg KOH / g and a kinematic viscosity at 100 ° C of at least 9 mm 2 / sec. The lubricating composition of the present invention provides excellent lubricant-fuel compatibility. |