4 Engine oils, industrial and vehicular lubricants; lubricating oils, namely, circulating oil, general machine oil, machine way lubricants, railroad diesel engine oil, conventional and synthetic compressor oil, rock drill oil, spindle oil, stationary engine oil, steam cylinder oil, vacuum pump oil, undercoating oil, bar and chain oil; penetrating oils, namely, synthetic gear and bearing oil, heat transfer oil; specialty oils, namely, concrete form release oil; process oils, namely, base oil, mineral seal, rubber process oil, and transformer oil