Method of controlling kinematic viscosity of polyalphaolefin

A process for controlling kinematic viscosity of a polyalphaolefin in a range of 1-70 centistokes at 100° C., the process comprising:

• oligomerizing C6 and above olefin monomers in presence of an aluminium halide, a promoter, and a solvent to obtain the polyalphaolefin;
• wherein the promoter is water, an alcohol, a ketone, an ether, or any combination thereof;
• wherein the kinematic viscosity of the polyalphaolefin is controlled by adjusting oligomerization temperature at a fixed mole ratio of olefin monomer and the aluminium halide, and wherein the mole ratio of the olefin monomer to the aluminium halide is from 10 to 500.