Crankcase lubricants, partial

As can be seen, this partial synthetic passenger car crankcase lubricant based upon the 2-ethylhexanol diester of azelaic acid very successfully passed the engine tests required to qualify as an SF grade engine oil. All of these tests were successful on the first try. It is not unusual for multiple runs to be made before a pass is obtained. 

Diesters prepared from specific monohydric alcohols can be formulated into low viscosity partial synthetic automotive crankcase lubricants. These diester basestocks exhibit definite advantages over petroleum basestocks of similar and sometimes higher viscosities. These advantages are ... 

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