Abstract: A metal glycol-based hydraulic fluid having vapor phase corrosion inhibition properties is disclosed. The hydraulic fluid can be used in food related applications.

Abstract: The present invention relates to a fluid lubricant for use in transmission of power in tractive drives. More particularly, the invention is related to a mixture of a hydrocarbon with non-aromatic cyclic moieties, a polyalphaolefin, and performance additives.

Abstract: Certain organic diesters and triesters have been found to be useful as a break-in lubricant compressors used in conjunction with HFC-based refrigeration systems. These include compositions of the formula: R.sub.1 OOC--Q--COOR.sub.2, ##STR1## and mixtures thereof, wherein Q is a straight- or branched-chain hydrocarbon group having from 2 to 10 carbon atoms and R.sub.1, R.sub.2 and R.sub.3 can be the same or different and are straight- or branched-chain hydrocarbon groups containing from 6 to 13 carbon atoms. In use as a break-in lubricant, the break-in lubricant is added and the compressor is run for about 1 to 4 hours. This lubricant is then drained.

Abstract: Certain organic diesters and triesters have been found to be useful as flushing oils in retrofitting CFC-based cooling systems to HFC-based cooling systems. These include compositions of the formulae R.sub.1 OOC--Q--COOR.sub.2, ##STR1## and mixtures thereof, wherein Q is a straight- or branched-chain hydrocarbon group having from 2 to 10 carbon atoms and R.sub.1, R.sub.2 and R.sub.3 can be the same or different and are straight- or branched-chain hydrocarbon groups containing from 6 to 13 carbon atoms. In use as a flushing oil, the lubricating oil is drained, the flushing oil is added and the system is run for about 24 hours. This oil is then drained and fresh flushing oil is added. The process is repeated until the original lubricating oil is within a desired range of the total flushing oil, say up to about 5% wt.