Predictive pump maintenance based upon utilization and operating conditions

A system of wellbore pumping unit, comprising:

• a wellbore pumping unit comprising a mixing system comprising a supply pump, a main pump, a plurality of sensors, and an input-output device;
• a unit controller comprising a processor, a non-transitory memory, and an input-output, configured to:
• operate a pumping equipment so as to perform a pumping operation to deliver a fluid into a wellbore, wherein the unit controller comprises a processor, a non-transitory memory, and an input-output device;
• collect one or more datasets associated with the pumping operation;
• retrieve one or more historical datasets associated with the pumping equipment;
• determine a fitness indicator for the pumping equipment based upon the one or more datasets associated with the pumping operation and the one or more historical datasets, wherein the fitness indicator comprises a probability of an imminent maintenance event of the pumping equipment;
• and
• output indicia of the fitness indicator for the pumping equipment via the input-output device.