generator fuel consumption litres per hour Page 2

Fuel burn depends on size, load, and fuel type—no free lunches, just louder ones.

As a ballpark, small 2 kW petrol inverters sip about 0.6–1.0 L/h at 25–50% load, while a 5 kVA petrol tradie unit uses roughly 1.5–2.5 L/h.

Step up to diesel and efficiency improves: an 8–10 kVA diesel often drinks 2–3 L/h, and a 20 kVA diesel around 4–6 L/h at moderate load.

Rule of thumb: petrol ≈ 0.35–0.50 L per kWh; diesel ≈ 0.22–0.30 L per kWh, assuming sensible loading.

Load it properly, keep filters clean, and avoid endless idling if you like your wallet. Consult official documentation for exact figures.