Your true running cost is everything you have paid to keep the vehicle on the road, fuel included, over a period long enough to average out the big bills. Fuel economy is measured from one full tank to the next, and a steady decline is one of the earliest signs that something needs attention.
The Reports screen in Maintano answers both questions from the logs you already keep. It needs no setup, but it does need data: a few months of entries before the totals mean anything, and a couple of fuel logs before economy appears at all.
What "total spent" includes: every log entry with a cost, whatever the category. Fuel, oil changes, tires, brakes, repairs, parts and accessories, cleaning, registration and insurance all count, because all of them are what the vehicle costs you. Pick a time range, the last three months, six months, a year or all time, and the total updates. Below it, the breakdown by category shows where the money goes, which is usually a surprise: fuel and insurance tend to dwarf the maintenance most people worry about. The breakdown by place shows which shops you spend the most with, for the entries where you saved a place.
How fuel economy is worked out: economy is distance divided by fuel, and the only honest way to measure it is between two fills to the top. When you log a fuel stop with the volume, the cost and the odometer, and leave "Filled to full" switched on, the app has a measuring point. The next full tank gives it a distance and a volume, and from there it reports your average economy as MPG or L/100km, following the distance unit you chose in Settings. A partial fill still counts its fuel and its cost; it just is not a measuring point, so economy waits for the next full tank.
Why the trend matters more than the number: your economy will always differ from the brochure figure, and it swings with the season, the load and the route. What should worry you is a drift. Economy sliding down by ten percent or more over a few months, on the same kind of driving, points to something fixable: under-inflated tires, a clogged air filter, a dragging brake, worn spark plugs, a stuck thermostat, or a roof box you forgot to take off. Caught early, each of those costs less than the fuel it wastes.
Check it yourself:
- Open Reports and set the time range to the last six months. Note the total, then open the category breakdown and find your biggest line.
- Look at the Fuel card. It shows the average economy, the average price you paid per litre or gallon, and how many fills that is based on. If it says economy appears after two fills to full, you know what to do next.
- Have more than one vehicle? Tap the vehicle chips at the top to switch between them or view them together, and compare which one is actually costing you more per month.
- Look at the same numbers again in three months. The comparison is the report.
Log the next three fill-ups with the volume and the odometer, and come back. The first economy figure appears after the second full tank, and the third gives you a trend worth reading.
Sep 25, 2026