Fuel Management for Fleets

Ask most operators what they pay for fuel and you will get a number in cents per litre. Ask what fuel costs them and it is a harder question — because the litres are usually the part that has already been negotiated. The money that leaks is almost always somewhere else.

Where fleet fuel spend actually leaks

• Driver time. A refuelling detour is paid time, and it repeats every tank. Fifteen minutes a vehicle a week is not noticeable on any single day and is a substantial annual number across a fleet.
• Fuel you cannot attribute. If fuel arrives as one invoice line, it cannot be charged to a job, a site or a vehicle. It becomes overhead, and overhead does not get managed.
• Downtime. A vehicle that runs dry, or a machine idle because the tank was empty at 6am, costs a multiple of the fuel involved.
• Admin. Reconciling receipts, chasing statements and matching purchases to vehicles is real work that produces nothing.
• Drift you cannot see. A vehicle quietly consuming more than it used to is a mechanical warning — but only if you are looking at it per asset rather than as part of a total.

Fuel cards vs on-site refuelling — honestly

These get discussed as rivals. They are really answers to different situations, and the right one depends on where your vehicles sleep.

The fees are the part that tends to get overlooked. A card programme carries management and service fees, and a charge each time a card is issued or replaced — usually monthly, and usually per card, so the cost scales with the size of the fleet rather than with how much fuel you actually buy. Then there is the day-to-day friction: cards get restricted, declined, or defeated by an IT or network problem at the pump, and the driver is stuck either way.

The invoicing works differently too. Cards land as one statement covering the whole fleet in a single monthly hit; on-site refuelling is invoiced after each service, which spreads the cost and ties every charge to a visit you can point at.

Plenty of operators run both — cards for the vehicles that genuinely roam, on-site for the ones that come home. That is a sensible answer, not a compromise.

What good fuel management looks like

• Supply that arrives on a schedule rather than when someone notices a gauge. A standing weekly or fortnightly delivery converts fuel from a recurring task into a background fact.
• Tank monitoring where it earns its keep. Remote level monitoring triggers a top-up before a tank is low, which is what actually removes running dry as a risk.
• Records at the asset level, so fuel can be charged to a job and drift is visible early.
• Documentation you could stand behind later — including for Fuel Tax Credit purposes on eligible off-road and business use.
• One supplier for diesel and AdBlue, so the second one never becomes the forgotten errand that derates a truck.

General guidance only, and not financial or tax advice. Fuel Tax Credit eligibility and record-keeping requirements depend on your circumstances — check with your accountant or the ATO.