Fuel Monitoring and Control

Fuel is the largest variable cost in any fleet and the hardest one to verify by hand. Measuring it in real time shows how much went into the tank, how much was burned, and when the level dropped while the vehicle was not moving.

Two ways to measure

There are two technologies, and the choice depends on the vehicle:

• Over the CAN bus. The device connects to the vehicle’s own electronics and reads the figures the vehicle already calculates — fuel level, total fuel used, engine RPM, temperature and fault codes. The tank is never opened and installation is quicker.
• With a fuel level sensor (FLS) in the tank. On older vehicles, machinery and tankers where CAN is unavailable or unreliable, a dedicated probe is fitted. This method is more accurate for detecting theft, because it measures inside the tank directly.

On a mixed fleet the two are normally combined, vehicle by vehicle.

Theft detection

The system watches the level continuously. When it sees a sharp drop that does not match normal consumption, it raises an alert with the exact time and location. Because the reading is tied to position, you can see immediately where it happened.

The sensitivity threshold is set per vehicle, so large tanks and off-road conditions — where fuel moves around inside the tank — do not produce false alarms.

Refills

Every refill is recorded with quantity, time and location. That makes it possible to check against the fuel station invoice — the quantity on the receipt should match the quantity that actually entered the tank.

Real consumption

The consumption report combines distance travelled with fuel burned and gives an average per vehicle and per driver. This is what surfaces vehicles with a mechanical fault, and drivers whose style costs materially more.

Frequently asked questions