Patent ID: 7825077

Claim:
A composition of lubricating oil for two stroke gasoline engine comprising (i) base stock of tailored heavy alkyl benzene having carbon atom mainly C21 to C25 in the range of 80-90% by weight of the lubricating oil, (ii) anti-oxidant in the range of 0.006-0.05% by weight of the lubricating oil (iii) extreme pressure additive in the range of 0.01-0.05% by weight of the lubricating oil, (iv) detergent-dispersant in the range of 0.05-0.15% by weight of the lubricating oil, (v) anti-foaming agent in the range of 0.01 to 1.0% by weight of the lubricating oil, (vi) pour point dispersant in the range of 0.01 to 1.0% by weight of the lubricating oil, (vii) corrosion inhibitor in the range of 0.10-0.03% by weight of the lubricating oil (viii) smoke reducing agent in the range 9.0-19.0% by weight of the lubricating oil, (ix) optionally with lubricity additive in the range of 0.01-0.05% by weight of the lubricating oil, wherein said base stock has a kinematic viscosity at 40° C. in the range 40-60 cst and wherein said lubricating oil has biodegradability of not less than 40%, wherein the smoke reducing agent used is selected from the group consisting of neem oil, mahua oil, ricebran oil, acetylated castor oil, linseed oil, karanja oil, ethyl hexyl ester of neem oil fatty acid, ethyl hexyl ester of karanj oil fatty acid, ethyl hexyl ester of neem oil fatty acid, toluene derivative of vegetable oil/its mono-esters and a mixture thereof.