Patent ID: 7670996

Claim:
A lubricant composition comprising a base oil and one or more additives wherein the lubricant composition has a kinematic viscosity at 100° C. of more than 5.6 cSt, a cold cranking simulated dynamic viscosity at −35° C. according to ASTM D 5293 of less than 6200 centiPoise (cP) and a mini rotary viscosity test value of less than 60000 cP according to ASTM D 4684, wherein the base oil has been obtained from waxy paraffinic Fischer-Tropsch synthesized hydrocarbons, the base oil comprising at least 98 wt % saturates, the saturates comprising between 10 and 40 wt % cyclo-paraffins comprising a weight ratio of greater than 3 of 1-ring cycloparaffins relative to cyclo-paraffins having two or more rings.