Fuel Is One of Your Biggest Costs
For most trade and construction businesses running a fleet, fuel is one of the highest operating costs alongside labour and equipment. And unlike labour, where you know exactly what you are paying each person, fuel costs are often a blur.
How much did the 30-tonne excavator burn last month? What is the ute fleet averaging per hundred kilometres? Is that dozer using more fuel than it did six months ago?
If you cannot answer those questions, you are spending blind.
Why Fuel Tracking Matters
Cost Visibility
You cannot manage what you cannot measure. Knowing your total monthly fuel bill is one thing. Knowing the per-vehicle breakdown is where you start making better decisions.
A vehicle averaging 35 litres per 100km when the rest of the fleet averages 28 might have a mechanical issue, a driver behaviour problem, or both. You will not know unless you are tracking consumption per vehicle.
The Hidden Waste
Research into fleet fuel consumption reveals some uncomfortable numbers.
Non-productive idling wastes about 7% of fuel consumption across construction fleets. That is fuel burned while machines are running but doing no useful work. Reducing idle time alone can lower fuel expenses by 15%.
On top of that, poor engine performance, clogged filters, and underinflated tyres can increase fuel usage by up to 20%. These are maintenance issues that are entirely preventable but invisible without per-vehicle consumption data.
Spotting Anomalies
Anomalies in fuel consumption can mean several things, and none of them are good:
- Mechanical issues - a blocked air filter, faulty injectors, or turbo problems will increase consumption before they show up as a breakdown
- Fuel theft - it happens more than people like to admit. On remote sites with bulk fuel tanks, unexplained consumption spikes are a red flag.
- Driver behaviour - excessive idling, heavy acceleration, and running equipment at incorrect RPM all burn fuel unnecessarily
- Incorrect billing - cross-referencing fuel card transactions against actual fill records catches misuse
Without per-vehicle consumption data tracked over time, none of these patterns are visible.
Tax and BAS Reporting
Fuel tax credits are available for eligible business use of fuel in Australia. To claim them, you need records: litres purchased, the type of fuel, and the vehicle or equipment it went into. Accurate fuel records make BAS time significantly less painful.
What to Record Per Fuel Entry
Every time fuel goes into a vehicle, capture these details:
- Vehicle - which specific vehicle or machine received the fuel
- Date and time - when the fuel was added
- Litres - how much fuel was put in. Actual litres, not dollars.
- Odometer or hour meter reading - the current reading at the time of fuelling
- Fuel type - diesel, unleaded, premium
- Location or site - where the fuelling occurred
- Who entered it - accountability for the data
The single most important field in a fuel entry is the vehicle reading at the time of fuelling. Without it, you have a list of purchases. With it, you have consumption data. That is the difference between a receipt and a management tool.
Partial Fills vs Full Fills
For accurate consumption calculations, full fills are ideal. Fill the tank completely, record the litres and the reading. Next full fill, you know exactly how many litres were consumed over how many kilometres or hours.
Partial fills make the maths harder but are not a deal-breaker if you are tracking consistently.
Reading Validation
Bad data is worse than no data, because it looks like real data until you make a decision based on it. The most common error is incorrect odometer or hour meter readings.
How to Catch Bad Readings
- Range checks - the new reading should be higher than the last one
- Reasonable distance checks - if the last reading was 85,000 km and the new one is 185,000 km, that is not a valid entry
- Consumption rate checks - if the calculated consumption falls outside a reasonable range, flag it for review
Good fuel tracking systems validate readings on entry rather than letting bad data sit in the system until someone notices months later.
Per-Vehicle Consumption Analysis
This is where fuel tracking becomes genuinely useful. Raw fuel entries are just records. Per-vehicle analysis turns them into insights.
What to Calculate
- Litres per 100 km for road vehicles
- Litres per hour for heavy machinery
- Rolling average consumption over time, not just the last fill
- Consumption trend - is this vehicle using more fuel now than three months ago?
Benchmarking Across the Fleet
Two identical Hiluxes doing similar work should have similar consumption. If one is 30% higher than the other, investigate. Is it a mechanical issue? A driver issue? A route issue?
Fleet-wide benchmarks expose the outliers. And outliers are where the money is being wasted.
Remote Sites Need a Different Approach
Ctrack's fleet fuel management guide for Australia highlights that remote Australian sites "demand a more strategic approach to fuel management." When fuel is trucked in at significant cost, every litre matters more.
On remote sites, consider:
- Bulk fuel storage management - reconciling bulk tank levels against individual vehicle fill records
- Fuel delivery scheduling - ordering based on actual consumption data, not estimates
- Tighter recording requirements - because the cost per litre is higher once transport is factored in
Spotting Fuel Theft
Nobody likes talking about it, but fuel theft is a real problem. Bulk diesel on construction sites, fuel cards used for personal vehicles, jerry cans walking off site.
Warning Signs
- Consumption spikes that do not correlate with increased work or hours
- Fuel entries at unusual times - 10pm on a Saturday from a site that does not run weekends
- Vehicles consuming significantly more than identical counterparts
- Bulk tank draw-down that exceeds the sum of individual vehicle entries
You cannot catch any of this if you are not tracking.
Offline Capability Is Not Optional
Construction sites and remote locations do not always have reliable internet. Fuel entries need to be recorded when and where they happen.
If your fuel tracking system does not work offline, it does not work on a construction site. Entries will be forgotten, scribbled on receipts, or simply not recorded.
What Offline Capability Actually Means
- Entries are saved to the device immediately, with no connection required
- Syncing happens automatically in the background when connectivity is available
- There is no data loss if the device runs out of battery before syncing
- Previously entered vehicle and reading data is available offline for reference
The Fuel Card Trap
Fuel cards are convenient but they are not a tracking system. They tell you where fuel was purchased and how much was spent.
They do not tell you:
- Which vehicle the fuel actually went into
- The odometer or hour meter reading at the time of fuelling
- Consumption per vehicle
Fuel cards are a payment method, not a management tool. They are useful as a cross-reference against actual tracking data, but they cannot replace it.
Stop Leaking Money
Fuel costs do not have to be a vague line item on the P&L. Per-vehicle consumption tracking, validated readings, anomaly detection, and site-level reporting turn fuel from an unmanaged expense into a controlled cost.
Burgy records fuel entries per vehicle with reading validation, calculates consumption automatically (litres per 100km for road vehicles, litres per hour for plant), and flags anomalies. Full offline capability means entries are captured in the field, not forgotten.