Signal Vac AXT Pump Oils are industrial grade compressor/vacuum lubricants specially formulated from high VI paraffinic and with a blend of polyalphaolefin base stocks. Beacon Lubricants Signal Vac AXT Pump Oils are characterized by outstanding rust protection, low deposit formation, excellent demulsibility, and low air entrainment, excellent anti-foam properties. Recommended drain intervals in excess of 8,000 hours or more under normal operating conditions.