Patent ID: 8058214

Claim:
A process to make a shock absorber fluid, comprising: a. selecting a base oil fraction having: consecutive numbers of carbon atoms, a kinematic viscosity at 100Â° C. between 1.5 and 3.5 mm 2 /s, a pour point less than âˆ’35Â° C., from greater than 5.8 wt % up to 27.5 wt % total molecules with cycloparaffinic functionality, and less than 10 wt % naphthenic carbon; and b. blending the base oil fraction with additives and less than 3.0 wt % combined viscosity index improver and pour point depressant, based on the total shock absorber fluid, to produce the shock absorber fluid having an air release after 1 minute by DIN 51381 of less than 0.8 vol %.