Establish reliable readings
Confirm whether the fleet provides fuel data through the vehicle or a compatible sensor.
Arrange installation and calibration where required, and understand reporting intervals and measurement limitations.
Investigate unusual changes
Review a fuel change alongside trip, stop and refuelling records.
Check sensor health and operational explanations before treating a change as evidence of theft.
Document the response
Keep a consistent review record and define who can investigate fuel exceptions.
Use confirmed findings to improve controls and monitoring; avoid automatic accusations based on an isolated reading.

