Aquabot uses a food based lubricant, Canola Oil, for their pump motors do not use motor oil of any kind it is too thick and will break the motor. You have to change all the seals, shaft bearing seal and case seal, since they dry out after a couple years of use, or you will have Canola oil in your pool after it leaks out from using the old seals again. Don't take any chances. The main failure of these motors are the Capacitors in the motor housing.