Keep your vacuum pump performing at its best with Milwaukee VP-OIL1 mineral vacuum pump oil. When evacuating HVAC, refrigeration, and heat pump systems, proper lubrication is essential to remove moisture and non-condensable gases effectively. This pure mineral formulation protects internal pump components from friction and mechanical wear while maintaining a tight seal for consistent deep vacuum performance. The convenient 500 ml bottle provides the ideal volume for routine maintenance and quick oil changes, replacing degraded fluid so your equipment stays fully reliable on every job.