The Economics of Mobile Fleet Fueling

The fuel series, part 3: what the pump really costs once you count the minutes

Fuel is most fleets' second-biggest operating cost after wages, and the sticker on the pump is the only part of it anyone watches. The rest hides in payroll and shrinkage: paid drivers standing at pumps, trucks detouring to stations, cards leaking, mornings starting late. Mobile fueling, the wet-hose model where the fuel comes to the equipment, exists because that hidden half is real money. This page does the arithmetic in the open so you can run it against your own yard.

The minutes are the money

Walk one truck through one retail fill: leave route or yard, drive to the station, queue, fuel, pay, drive back. Call it 15 to 30 minutes with the detour, and it happens several times a week per vehicle, on the clock. A driver costing $30 an hour with benefits burns $10 to $15 of payroll per fill before a drop of fuel is priced, and a 20-truck fleet fueling three times a week is spending on the order of $600 to $900 a week, $30,000 to $45,000 a year, paying people to stand at pumps. Add the bunching problem: every truck that fuels at 6:30 a.m. is a truck not rolling at 6:30 a.m., and dispatch feels it as late starts across the board. Overnight wet-hosing deletes the whole line item: crews walk to full equipment and the first billable minute of the day is a working one.

Shrinkage: the quiet percentage

Fuel spend leaks. Cards get skimmed at compromised pumps, ghost transactions ride on stolen numbers, personal vehicles get topped on the company card, cans get filled on the side, and receipts get lost faster than they get audited. Industry experience puts fleet fuel shrinkage in the low single digits of total spend, which on a million dollars of annual fuel is tens of thousands of dollars walking off quietly. Metered delivery closes the doors: every gallon is pumped by a bonded driver into a named asset, ticketed, and reconciled, and a tank that takes more than its capacity or an asset burning gallons its hours can't explain surfaces in the first review. The audit trail isn't a bolt-on; it's the delivery method itself.

The records do double duty

Per-asset metering throws off exactly the records the tax side wants: gallons by vehicle for IFTA apportionment on interstate fleets, gallons into off-road equipment for dyed diesel compliance and refund claims on taxed fuel burned off-road, and clean cost-per-asset numbers that make chargebacks and bids honest. Mixed yards get the full version of the benefit: one overnight visit drops taxed clear diesel into the trucks and untaxed dyed into the excavators, generators, and pumps, each stream on its own paper, which is a compliance chore turned into a byproduct. Consolidated invoicing replaces a shoebox of card receipts with one line-itemed statement, and fuel quality stops being the station's word: you know whose tank your fuel came from.

When mobile wins, and when it doesn't

The model earns its keep where equipment concentrates and mornings matter: yards of roughly ten or more units fueling regularly, construction sites, distribution fleets with dawn dispatch, and any operation mixing highway trucks with off-road iron. It also carries the case where the equipment can't practically leave, cranes, gensets, pumps, and rig site engines take delivered fuel or none. The pump keeps its ground for scattered over-the-road tractors that fuel wherever the load takes them; cardlock networks price that duty well, and plenty of fleets sensibly run both: wet-hose at the yard, cards on the road. The way to know is not a brochure but a fuel-spend audit: two weeks of your own tickets, timesheets, and card statements, priced honestly, against a delivered quote.

Common questions

What about spills and liability in the yard?

A professional fueler arrives placarded, insured, and trained, with spill kits on the truck and procedures your insurer can read. Compare that against employees hand-carrying cans from a station, which is the alternative many yards actually practice, and the risk ledger favors the professional visit.

Does delivered fuel lock me into one supplier?

No more than any vendor does. Pricing rides published rack indexes plus a stated margin, so it stays comparable week to week, and the switching cost is a phone call. A supplier who wants the business long-term earns it on reliability and paper quality, not lock-in.

Can one visit serve trucks and a yard tank?

Yes. Wet-hosing to equipment and keeping a bulk or day tank topped are the same route stop, and plenty of customers run both, the tank for mid-day tops, the hose for the overnight fill.

The series, and where Vexon fits

Previous: dyed diesel and fuel taxes. Next, the series closer: cross-border fuel logistics. Vexon runs mobile fleet fueling across Texas, clear and dyed on the same drop: get in touch for a delivered quote against your current spend.