Castrol AircolTM MR compressor oil range of premium lubricants are formulated from highly refined mineral oils and novel additive technology to give outstanding antiwear and antirust performance to meet the requirements of Atlas Copco and similar types of compressor design. Aircol MR incorporates a carefully balanced antioxidant system providing improved oxidative and thermal stability giving ”extended” service life for both oil flooded and oil injected rotary screw compressors operating continuously at air discharge temperatures up to 90°C. The product has been designed to meet service drain intervals of 4000 hours. For intermittent or continuous operation with air discharge temperatures above 90°C the manufacturers standard oil change periods should be used. The Aircol MR range is fully compatible with nitrile, silicone and fluropolymer seal materials