Fuel Efficiency Trend
Workshop & Consumables → Fuel Efficiency Trend shows the fleet's fuel picture month by month, oldest first: litres, distance, spend, and the derived ℓ/100 km and cost / km rates.
How the figures are built
Consumption is measured on full-to-full intervals — the distance and litres between two brim fills. Each interval lands in the month it closed. This is the only honest way to measure consumption; part-fills in between are absorbed into the interval.
Reading the table
| Column | Meaning |
|---|---|
| Intervals | Full-to-full intervals that closed in the month |
| Litres / Distance / Spend | What those intervals consumed, covered, and cost |
| ℓ/100 km | Fleet consumption rate for the month |
| Cost / km | Fuel cost per kilometre, in cents |
The All months footer computes weighted rates across the whole history — total litres over total distance — not an average of the monthly figures.
What to look for
- A creeping ℓ/100 km over several months means the fleet is getting less efficient: ageing vehicles, changing routes, or driver habits.
- Cost / km rising while ℓ/100 km is flat is just the diesel price — a rate problem, not an efficiency problem.
- To find which vehicles are dragging the average, go to Fuel Variance.