Almost nobody siphons fuel with a hose. It disappears in idling, in detours, in trips nobody authorised and in kilometres that don't match the invoice. All of that can be shown.
A vehicle standing still with the engine on burns fuel and produces nothing. It is the first thing that shows up.
Detours and personal errands appear in the day's history.
How many kilometres each vehicle actually covered, to cross-check against the fuel invoice.
Hard acceleration and braking cost fuel. The driving score reflects it.
Where it stopped and for how long, even where it shouldn't have.
The scheduled report shows whether the measure worked.
Exact words you can use on the visit. No jargon.
“Add up the hours your vehicles spend idling. That figure alone pays for the service.”
“I'm not going to tell you fuel is being stolen. I'm going to show you how many kilometres the vehicle covered and you compare with the invoice.”
“And next month we compare again: if it hasn't dropped, I'll come back and say so.”
You resell under your own brand. This is who it works for, and with what argument.
Where fuel is the second cost after payroll.
Many stops, plenty of idling, plenty of room for detours.
Where equipment runs for hours and consumption is hard to control.
Where fuel comes from an on-site tank and the trail is lost.
With a level sensor fitted in the tank. It shows the level, the refuellings and the sudden drops that give away abnormal consumption. Without a sensor those reports come out empty.
Yes: a sudden drop in level with the vehicle stopped is the classic signal, and it is recorded with time and place.
Partly. Without a sensor you detect symptoms — engine running while stationary, unauthorised trips, real kilometres against reported ones — but not the level in the tank.
The sensor and its calibration. A badly calibrated sensor produces data that looks right and isn't, and that destroys the client's trust in the whole service.
It is the argument that turns a purchase into an investment.