Answer
Jan 29, 2026 - 06:36 AM
You should use a NON-DETERGENT, 30W oil.
The AR64516, is the oil to be used with the AR630, and AR630V2 Models. It is specifically formulated for plunger pumps.
AR Blue Clean AR64516, SAE 30W Non-Detergent Oil, Multi-Viscosity Petroleum-Based Lubricant
