Champion Heavy-Duty Compressor Oil is recommended for lubrication of single stage, 2-stage and multi-stage reciprocating air compressors (piston-type) or rotary screw compressors that specify a SAE 30 or a "non-detergent" 30 weight oil. Champion Heavy-Duty Compressor Oil is a long life, high film strength, energy efficient, synthetic lubricant that significantly increases the reliability and efficiency of reciprocating air compressors. It excels at reducing wear and keeping discharge valves-free of harmful carbon deposits. The product forms a better seal and reduces friction between the cylinder wall and piston rings for greater compressor efficiency. It is formulated with Champion's unique heavy-duty compressor oil technology, which is proven to make equipment run smoother, cooler, quieter, longer and more efficiently.