Engine Oil Transfer Pump Suitable for transferring thick oils, lubricating, motor, vegetable, mineral and lighter oils and fuels. These pumps work on a central rotating gear that is more rugged than a standard vane pump which are only good for thin, low viscous fluids and oils. Our gear oil pumps are continuous running provided the lines, suction head and oil viscosity does not exceed specifications. The gear provides enough suction without the pump needing to be primed. However with thicker oils and in colder weather, the pump needs to begin running before the suction line is placed into the oil tank/source. The pump features a thermal protection which will kick in to prevent overheating when the oil or suction parameters are not adhered to. Specifications Output/Transfer Rate: 35L/min Voltage: 230V AC / 50 Hz Max Viscosity 300 cST Wattage: 550W Head (Suction / Lift): 4m / 15m Inlet/outlet: 3/4″ BSP Max pressure: 2 Bar / 29 PSI Duty cycle: Continuous Power lead length: 2 metres Country of manufacture: China