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Tank Wagon

Every gallon on the truck, counted and costed.

FastDragon Tank Wagon is delivery software for jobbers whose own trucks carry their own fuel. It keeps the stock and cost in every compartment, sells each gallon at the pour, and closes the day with every delivery BOL and invoice approved and sent. One truck runs commercial routes, wet hose fleets and home heating oil.

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The problem

What usually goes wrong.

  • Gallons poured before the supplier bill arrives, so inventory runs negative
  • Fuel left on the truck overnight with no value on the books
  • Invoices that go out before anyone checks the day
Tank Wagon

Three screens.

The run, the inventory behind it, and the end of the day.

The run

Pickup, stops and stock on one page.

A run opens with what is on the truck, compartment by compartment, against what the day’s drops need. The terminal pickup is a stop on the map like any other. When the drops need more of a product than the truck holds, the run says how short it is and offers a pickup. Reorder the stops by dragging the list or tapping the map pins, and every stop gets a drive time and an arrival time.

  • A road route line with the minutes for each leg
  • A driver app on an ordinary phone that keeps working without signal
  • Meter start and stop, a signature and a photo at every drop
  • Unattended night drops proven by photo, time and GPS position
  • The office can do anything the driver’s phone does, and fix a ticket afterward
Inventory

Every pour leaves stock at its cost.

A drop takes its gallons out of the compartment they came from, at that product’s cost on that truck, and the invoice carries the same figure, so cost of goods posts with every sale. Inventory shows what was on hand on any date, every move with its running gallons, value and average, and the valuation beside your inventory account.

  • Moving average cost, or FIFO starting any 1 January
  • Leftover gallons carry their cost onto the next run
  • Transfers between compartments, trucks and tote stock
  • Over or short past your tolerance flagged at the end-of-day count
  • Supplier cost estimated from the load and replaced when the bill lands
End of day

Approve the day, then send it.

The office reviews each drop at the end of the day. Approve one or approve all, then email the delivery BOLs and invoices one at a time or all at once. Only approved drops go out, and an edit after approval sends the drop back for another look.

  • Delivery BOLs going out and supplier BOLs coming in, each named for its direction
  • Sales tax by delivery site, with exemption certificates on file
  • Delivery charges per mile, per drop, per unit, after hours and on weekends
  • DEF paperwork with the manufacturer, the brand and ISO 22241
  • Invoices post to the FastDragon ledger
What you get

Tank Wagon in one module.

The truck’s stock and the books are one record.

  • Stock, value and average cost in every compartment, on every truck
  • Truck and trailer rigs loaded as one, with a warning past capacity
  • Moving average or FIFO cost, with stock relieved at each pour
  • Inventory on any date, every move, and the valuation beside the ledger
  • The terminal pickup as a planned stop, and a warning when the truck runs short
  • Approve, then send the day’s delivery BOLs and invoices
  • Degree-day forecasts and a due list for automatic heating oil customers
  • Budget plans, prebuy and price cap plans, and energy assistance billing
  • A ticket line per unit for wet hose fleets, with odometer or hour meter
  • Gallons by unit and department in the fleet customer’s portal
  • Everything in FastDragon Hauling: the board, the driver app, GPS and IFTA
  • The same customers, orders and ledger as the rest of FastDragon

1

average cost per product per truck

0.001

gallon on every meter reading

65°F

base for every degree day

1

record from the pour to the ledger

One truck, every kind of drop

The work Tank Wagon carries.

Commercial tank wagon routes

Construction yards, farms, bus barns, quarries and fleet tanks, with clear and dyed diesel, gasoline and DEF on one truck. Standing routes repeat onto the next week with fresh orders.

Fuel delivery software buyer’s guide

Wet hose fueling

A ticket line for every unit fuelled, scanned from its QR label, with the odometer or hour meter. A fill bigger than the unit’s tank is flagged. Fleet customers get gallons by unit and department in their portal.

Wet hose fueling software guide

Home heating oil

Degree-day forecasts with a K-factor learned at every fill, a morning due list for automatic customers, will-call minimums, budget plans, prebuy and price cap plans, and energy assistance billed to the agency.

Heating oil delivery software guide

Generators and standby power

Each generator is an asset with its product, capacity and low-level threshold. A tank monitor reading or a driver’s reading under the threshold alerts the people you name.

FastDragon Hauling

Farm and off-road diesel

Dyed diesel rides in its own compartment and prints the nontaxable-use notice on every ticket. Exempt sites are invoiced without the tax, with the reason kept on the site.

Tank truck compartments explained

DEF, bulk and totes

DEF stays out of diesel compartments. Totes carry rent and deposits, empties are counted at every stop, and the paperwork names the manufacturer and brand.

DEF delivery software
Questions we get

Tank Wagon questions.

What is FastDragon Tank Wagon?

FastDragon Tank Wagon is fuel delivery software for a jobber or marketer whose own trucks carry its own fuel and DEF. It keeps the stock and cost in every compartment of every truck, relieves the stock at each pour, invoices the drop with its cost of goods, and closes the day with the delivery BOLs and invoices approved and sent. It runs on the same customers, orders, invoices and ledger as the rest of FastDragon.

Who is Tank Wagon built for?

Fuel jobbers, petroleum marketers and DEF distributors running small trucks into many customers’ tanks: commercial tank wagon routes, wet hose fleets at night, home heating oil, farms, job sites and generators. One truck is enough to start, and a truck and trailer load as one rig.

How is Tank Wagon different from FastDragon Hauling?

Hauling runs the trucks: the dispatch board, the driver app, GPS, the delivery ticket and the invoice at the drop. Tank Wagon adds the fuel on the truck as inventory: gallons and cost in every compartment, stock relieved at each pour, inventory screens, transfers, the end-of-day count, and approve-then-send. With Tank Wagon on, the Hauling tab reads Tank Wagon.

How does it figure the cost of the fuel on the truck?

Moving weighted average by default: each load at the rack updates the average cost of that product on that truck, and each drop leaves at that average. FIFO is available from any 1 January. Until the supplier bill arrives, the load is costed from the price on the load or the day’s rack, and the real bill replaces the estimate when it lands.

Does it handle home heating oil?

Yes. FastDragon forecasts each heating tank from daily heating degree days at the nearest weather station and the tank’s K-factor, which it relearns at every fill. Automatic customers come up on a due list each morning and the dispatcher picks the runs. Will-call minimums, small-delivery fees, budget plans, prebuy and price cap plans, energy assistance billing and residential heating fuel tax are all handled.

Does it handle wet hose fueling?

Yes. Each vehicle or machine is an asset with a QR label, a product and a tank capacity. The driver scans it, records the gallons and the odometer or hour meter, and a fill bigger than the tank is flagged. A site marked unattended asks for no signature and keeps the photo, time and GPS position instead. Fleet customers see gallons by unit and department in their portal and by email each month.

Does it charge sales tax on DEF?

FastDragon figures sales tax from the delivery site’s rate. A customer with a resale or exemption certificate on file is invoiced without it, and the certificate, its number and a photo of it are kept on the customer.

What does Tank Wagon cost?

FastDragon quotes Tank Wagon to your operation: trucks, drivers and the other modules you run.

Inside the platform

The rest of the platform.

Each stands alone. Run several and they share a login, a customer list and a ledger.

Petroleum marketers

Fuel Jobber

Buying, rack pricing, allocation, demand, dispatch, and dealer billing.

Take a look Fuel consignment

Commissioned agents

Fuel sales, card receipts, rent, and commission settled daily and posted in balance.

Take a look Convenience stores

FastDragon C-store

Pricebook, inventory, shrink, scan-data rebates, and fuel reconciliation.

Take a look By the book

Compliance

A calendar per site, the tank over and short checked daily, inspections on a phone, proof filed.

Take a look The books

Financials

A real general ledger, aging on your own terms, bank rec, and a close that checks itself.

Take a look Property

Real estate

Leases, rent roll, recurring rent, deposits, and profit by property.

Take a look
Related reading

More on this

Best heating oil delivery software in 2026: a dealer’s buyer’s guideWet hose fueling software in 2026: a mobile fueling buyer’s guideHow to start a mobile fueling business in 2026Best fuel delivery software in 2026: a hauler’s buyer’s guideFleetPanda alternatives: seven fuel delivery systems comparedDEF delivery software: what a bulk and tote route has to track

Bring one of your trucks.

Book a walkthrough. We set up a truck like yours with its compartments, run a day of drops on a phone, and show the stock, the cost and the invoices.

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