A hybrid can show on the computer 4–5 l/100 km, and a calculation from the fill-up comes out at 6 l. That is not a trick — different methods and driving conditions change the result a lot.
How to measure fuel use “at the pump”?
- Fill until the click (the same way every time).
- Write down the mileage and the litres.
- Formula: (litres / km) × 100 = l/100 km.
Compare results only on a similar route (town versus motorway) and temperature.
What inflates fuel use?
- Short trips in winter (the engine often warms itself on fuel)
- A weak HV battery — the engine charges the pack more often
- Low tyre pressure and a roof box
- Aggressive driving with frequent full acceleration
The trip computer
Treat it as a trend, not an oracle. After a battery service or a 12 V replacement, fuel use often drops by 0.3–0.8 l, because the car less often “rescues” a weak pack.
Fuel use suddenly up? Check the HV battery and the 12 V battery in one visit.
Visit Green Serwis in Krakow — we specialise in Toyota and Lexus hybrids.
Book a visitSummary
Regular diagnostics and careful use keep a hybrid free of surprises. If you have questions after reading — see our hybrid service or contact us.
