Comparison · 8×4 lorry · construction at 12.9 t
Mercedes-Benz Arocs, 290 kW, 8x4 rigid lorry vs Volvo FM, 285 kW, 8x4 rigid lorry
Mercedes-Benz Arocs, 290 kW, 8x4 rigid lorry
2018–2023 · 290 kW
44.3l/100 km
median; 43.3–45.2 across 23 declared configurations
Volvo FM, 285 kW, 8x4 rigid lorry
2019–2023 · 285 kW
40.9l/100 km
median; 39.5–43.4 across 6 declared configurations
What the numbers actually say
There is 3.4 l/100 km between these two (8.3%). That is inside the 10% tolerance of declared figures, so on fuel alone neither is the better choice: at 120,000 km a year and an assumed £1.40 a litre the gap would be about 4,080 litres a year (£5,712). The declared figures for one of them alone span 3.9 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.
Fuel over a year
120,000 km · assumed priceMercedes-Benz Arocs, 290 kW, 8x4 rigid lorry53,160 litres
£74,424 at the assumed price
Volvo FM, 285 kW, 8x4 rigid lorry49,080 litres
£68,712 at the assumed price
At 120,000 km a year and an assumed £1.40 a litre; the price is an assumption, not one we track.