Every private fleet manager knows the fuel line item on the budget. Far fewer have ever calculated the other cost of fuel – the one that doesn't show up on the invoice but shows up everywhere else: on the dispatch board, in the hours-of-service log, and in the maintenance schedule.
That cost is downtime. For Canadian private carriers already contending with rising fuel prices and carbon pricing, it may be the single biggest fuel-related expense that goes unmeasured.

What a "Quick Stop" Actually Costs Consider a typical fuelling routine: a driver finishes a delivery, then has to detour to  the nearest station – for many fleets,  that's 5–10 minutes away. Between the drive to and from the station and the time at the pump, a single fill-up can take 20–45 minutes of time away from the route.Now multiply that by several fuel runs across multiple units, and those stops alone can cost a fleet tens of hours a week. Under Canadian hours-of-service rules, that time isn't free. In fact, fuelling is not excluded from on-duty time in Commercial Vehicle Drivers Hours of Service Regulations. Time spent off-route to fuel up draws directly from the same clock that governs how far a driver can travel that day. Transport Canada limits commercial truck drivers to a maximum of 13 hours of driving time in a day. When fuel runs consume that available time, it can tip a route into overtime, push a delivery past its window, or leave a driver up against their daily limit before the job is even finished.
Driver time lost to fuel runs translates directly into labour cost. As reported by the Government Canada, transport truck drivers in Canada typically earn between $19.45 and $37.00 an hour. Consider a fleet of 10 drivers earning $30/hour, refuelling three times a week, with each refuelling taking 30 minutes – that's $450 a week spent purely on wages to fuel the trucks. Add in wear and tear from the extra driving, along with the occasional spillage, theft, and fuel burned while waiting at commercial cardlock fuelling stations. The true cost of a "quick stop" looks very different from what shows up on the fuel invoice alone.

A Hidden Cost: Driver Safety
Commercial cardlock refuelling creates a real safety cost, and it shows up in more ways than one. Drivers navigate hazardous ground surfaces – ice, snow, wet, or muddy pavement – just getting down from the cab to the pump and back. At busy cardlocks, backing and maneuvering a loaded truck into a fuelling lane adds another layer of risk, with limited space and other vehicles moving nearby. Overnight, the risks shift again: poor lighting, reduced visibility, and a driver working largely alone. This is the type of exposure most commercial drivers deal with frequently. According to the National Safety Council, slips, trips, and falls are among the most common causes of occupational injury resulting in several days away from work, with transportation among the industries facing the highest risk. This kind of downtime is unplanned. It can mean a truck temporarily off the road while dispatch scrambles to arrange coverage – a delay with no warning.

Bringing Fuel to the Fleet
Wheel-to-wheel, on-site fuel delivery earns its place in this conversation not as a convenience, but as an operational fix. When fuel is delivered directly to the yard, to a job site, or to any location where trucks and equipment are already parked, several operational costs are addressed at once:
• No detour. Trucks are fuelled where they're already parked – overnight, between shifts, or during loading, rather than routed elsewhere to do it.
• No queue. A single delivery can fuel an entire fleet in the time it would take one truck to fuel itself at a commercial cardlock station.
• No lost drive time. Fuelling happens outside the working shift, so it no longer competes with hours-of-service limits.
• Improved fuel control. Every litre delivered is measured and recorded against a specific tank or vehicle, providing a level of tracking that's difficult to achieve with a fleet card used across multiple fuelling stations.
• Winter reliability. Diesel gels in cold weather unless properly blended. As explained by ARO Scientific, the cloud point is the temperature at which paraffin wax and other fuel components begin to solidify. The higher that point, the greater the risk of clogged filters, reduced performance, and even engine failure in cold conditions. This is why winter diesel management is essential  in Canadian climates. For carriers operating through a Canadian winter,  on-site fuel delivery allows fuel supply and cold-weather additive treatment to  be managed proactively. The correct winter-grade diesel is delivered to every vehicle in the fleet, and carriers know exactly what blend is in every tank.
• Improved driver safety and satisfaction. Starting the day with a full tank, rather than stopping for fuel along the way, makes a noticeable difference for drivers. On-site fleet refuelling means drivers spend less time exposed to extreme heat, harsh winter conditions, or hazardous ground surfaces – reducing the physical strain and injury risk that come with refuelling in poor weather. These aren't marginal savings – for a fleet running multiple trucks daily; they compound fast.

Making the Case Internally
For fleet managers considering whether on-site fuel delivery is worth exploring, the calculation is straightforward: measure the average time a driver spends at the pump during a typical week, multiply that figure across the fleet, and apply an hourly labour cost. That figure alone doesn't yet include wear and tear from the extra driving, idle time, and spillage at commercial cardlocks – all of which point to the same conclusion: time spent fuelling on-site is time and cost recovered.
This is the type of analysis an opportunity savings assessment is designed to produce, and for most private fleets, the resulting figure is larger than expected.