Why fuel is still the biggest lever on your margins

Anyone who has run trucks across the Channel knows the feeling: you quote a job at a sensible rate, the diesel price moves three times before the run, and by the time the wheels stop turning your margin has quietly disappeared. Fuel typically accounts for somewhere between a quarter and a third of the total operating cost of an international run, which means even a modest efficiency gain has a disproportionate effect on the bottom line. The good news is that most of the savings are not the result of one clever trick. They come from a handful of practical habits, applied consistently, week after week.

Plan the route around fuel, not just distance

The shortest route is not always the cheapest one. Motorway running at a steady 85 km/h often burns less fuel per kilometre than a shorter cross-country slog through towns, roundabouts and hill climbs. When you are planning a run from, say, Manchester down to northern Italy, it is worth comparing the total cost of each option rather than simply looking at the mileage on a map.

• Use routing software that accounts for gradients, congestion and average speeds, not just distance.
• Build in known bottlenecks at the right time of day — sitting in a queue on the Antwerp ring road with the engine idling costs money and gains nothing.
• Group deliveries so that a vehicle does not double back across a region to serve two drops that could be sequenced better.
• Check whether a slightly longer motorway route allows you to reach a cheaper fuel stop without a detour that eats the saving.

Small changes to a planner's routine — ten minutes of comparison before a run is released — can shave several per cent off consumption over a season.

Driver behaviour is worth more than any gadget

Two drivers in identical vehicles on the same route can differ by 15 per cent in fuel use. That gap is not about skill in the mechanical sense; it is about anticipation, throttle control and a bit of patience.

• Encourage progressive acceleration and early lifting off the throttle rather than late, hard braking.
• Use cruise control on long motorway stretches where traffic is light, but switch it off in rolling terrain, where it tends to hold speed uphill at the cost of a heavy burn.
• Keep idling to a minimum — modern engines do not need a long warm-up, and a queue at a border post is not a reason to leave the engine running.
• Watch tyre pressures, roof deflectors and trailer gaps as part of the daily walk-round, not as an afterthought.

Telematics data gives you the evidence to have a constructive conversation rather than a vague one. Most drivers respond well when they can see their own figures, especially if there is a modest bonus attached to hitting a target.

Keep the vehicle in proper shape

A poorly maintained truck quietly wastes fuel on every kilometre. Under-inflated tyres increase rolling resistance. A clogged air filter, a dragging brake or a misaligned axle all add up. None of it is dramatic on its own; all of it is measurable across a fleet over a year.

• Check tyre pressures weekly, including the trailer, and adjust for load and ambient temperature.
• Service according to the manufacturer's schedule, not just when something fails.
• Fix aerodynamic damage promptly — a torn curtain or a missing side skirt can cost you a litre per hundred kilometres.
• Consider whether your fleet's specification still suits the work. A vehicle sized for heavier loads than it typically carries is burning fuel to move its own weight.

Buy fuel more cleverly across borders

Fuel prices vary enormously between countries, and the differential is often large enough to justify planning where you fill up. Luxembourg, for example, has long been a favourite for a reason, and German motorway services charge a noticeable premium over nearby off-motorway stations.

• Plan fill-ups so that you take on the bulk of your fuel where it is cheapest, within the limits of your tank range and any duty rules that apply.
• Use a fuel card network that covers the countries you actually run through, and read the transaction fees carefully — a card that looks cheap in one market can be expensive in another.
• Ask about volume agreements with the sites you use most often. Regular custom is worth something, even in a competitive market.
• Keep an eye on reclaiming VAT and any duty rebates you are entitled to. It is easy money left on the table.

Measure it, or you will not manage it

None of the above works without numbers. Track fuel consumption per vehicle, per driver and per route, and review it monthly rather than annually. Compare your figures with the manufacturer's expected range for that vehicle and your typical load profile — if you are well outside it, something specific is wrong, and finding out what is far cheaper than shrugging it off.

The operators who keep their fuel costs under control are rarely doing anything exotic. They plan properly, train their drivers, maintain their vehicles and buy sensibly. It is unglamorous work, but on international routes, where every litre counts twice over, it is the difference between a run that pays and one that simply keeps the wheels turning.