Combine the Master Mechanic Air Compressor Oil with routine oil maintenance to extend the life of your compressor. Specially designed to reduce the friction and wear in the heat produced by the compressor pumps plus resists lubricant oxidation and minimizes value deposits. The non-detergent, all weather blend combined with additives that inhibit premature wear prevent oil breakdown. Please note; NOT for use in gas engines. Product is sold in a 1 quart size.