Morris Air Force 4000 Piston / Screw Compressor Oil – 5 & 25 litres – lSO 32, 48, 68 & 100. Exceptional anti-wear performance for long compressor life. Minimal oil carryover for improved separator life. Corrosion inhibited, high stability formula. Enhanced water separating properties. Excellent compatibility with most downstream equipment. AIR FORCE 4000 fluids will retain their performance characteristics throughout a 4000 hour design life, providing bulk oil temperature does not exceed 90°C and a maximum ambient temperature does not exceed 35°C. If either of these temperatures is exceeded, more frequent oil changes will be required...