The challenge
Fuel is the largest variable cost in any commercial fleet. Unlike most costs, it compounds in ways that are difficult to trace.
A driver who idles for an extra 20 minutes a day creates waste that never appears on any report. Another driver whose acceleration style burns 15% more fuel than the colleague in the next vehicle costs the organisation money on every single trip. A route that looked efficient on paper but generates unnecessary stops in practice drains the fuel budget quietly and consistently. Individually, none of these feel significant. Across a fleet of 200 vehicles running every day, they add up to a number that appears on the P&L with no clear owner.
This enterprise was living that reality. Fuel costs were rising, sustainability targets were tightening, and the organisation had limited visibility into where the waste was actually coming from.
They did not need a bigger fuel budget. They needed to see what was already happening inside their fleet.
What the existing data could not show
Most fleet operations have some form of telematics in place, covering location tracking, trip logs, and basic vehicle data. What they rarely have is the behavioral layer that sits underneath that data.
Where is the fuel actually going? Which drivers are idling the most, and on which routes? Which acceleration and braking patterns are costing the most per kilometre? Where are the route inefficiencies that nobody has ever measured because nobody ever had the data to see them?
This organisation could see the fuel bill. They could not see what was driving it.
That is the gap DriveSense was deployed to close.
How the pilot worked
Core9 deployed DriveSense across the 200-vehicle fleet as a controlled pilot. The goal was not to immediately change behavior. It was to first understand what was actually happening.
DriveSense monitored idling patterns across every vehicle and every route. It tracked harsh acceleration and braking events and mapped them against individual drivers and specific corridors. It surfaced route inefficiencies that were generating unnecessary fuel consumption. It also built a clear picture of fuel consumption trends across the fleet that the organisation had never had before.
Within weeks, fleet managers could see exactly where the waste was concentrated, not in general terms, but broken down by driver, vehicle, route, and time of day.
That visibility made the intervention straightforward. Drivers received clear, specific feedback on the behaviors generating the most waste. Managers had the data to hold coaching conversations grounded in fact rather than assumption. Route decisions could be adjusted based on actual consumption data rather than estimated efficiency.
The fleet did not change its vehicles. It changed its awareness.
The results
- 3% reduction in total fuel consumption across 200 vehicles.This number sounds modest until you calculate what 3% means at scale, across a full year, at current diesel prices.
- 10,000 litres of fuel saved during the pilot period.This was fuel being burned without generating any operational value, recovered through visibility and behavioral change rather than procurement or route restructuring.
- 26 tonnes of CO₂ emissions reduced per month.This is a measurable, reportable sustainability outcome delivered as a direct consequence of operational efficiency improvement, not as a separate initiative but as the same intervention measured differently.
- Improved driving behavior sustained across the fleet.The shift in driver behavior was not a one-time correction. Drivers who understand how their habits affect fuel consumption continue to drive differently, and the savings compound over time.
What a 3% reduction means at fleet scale
Three percent sounds small. In the context of a large fleet, it is not.
For a 200-vehicle operation running daily, a 3% fuel reduction across a year represents a material reduction in one of the organisation’s largest operating costs. At current diesel prices, the financial return on a pilot of this scale is measurable within the first quarter of deployment.
The more significant finding from this pilot, however, was not the number itself. It was what the number revealed about how much was already recoverable inside the fleet before any structural changes were made.
There were no new vehicles, no route redesign, and no renegotiated fuel contracts. The savings came entirely from giving the right people visibility into what was already happening, alongside a feedback loop that connected driver behavior to its cost in real time.
That is a finding that does not disappear when the pilot ends. Every fleet has a version of this recoverable cost sitting inside its daily operations, and most have never measured it precisely enough to know how large it is.
Lower fuel costs and lower emissions
This organisation entered the pilot with two pressures pulling in slightly different directions. There was commercial pressure to reduce fuel costs and sustainability pressure to reduce emissions. These are often treated as separate conversations requiring separate initiatives with separate budgets.
This pilot produced both outcomes from a single deployment.
A reduction of 26 tonnes of CO₂ per month is not a rounding error on a sustainability report. It is a measurable, auditable outcome that can be reported against environmental commitments, generated as a consequence of operational efficiency improvement rather than as a standalone sustainability programme.
The conclusion is straightforward. When you fix the behavioral inefficiency that drives fuel waste, you fix the emissions that come with it. The cost saving and the sustainability outcome are the same intervention, measured twice.
Finding the recoverable fuel cost in your fleet
Every fleet has idle time that generates no operational value. Every fleet has drivers whose habits cost more per kilometre than their colleagues operating identical vehicles on identical routes. Every fleet has a fuel bill with a behavioral component that has never been clearly separated from the structural one.
DriveSense makes that separation possible. Once you can see where the waste is concentrated, you can act on it.
Book a 15-minute call with the Core9 team to understand what the recoverable fuel cost looks like inside your operation.