Comparison · 6×4 lorry · long haul at 19.3 t
Mercedes-Benz Arocs, 425 kW, 6x4 rigid lorry vs Volvo FH, 413 kW, 6x4 rigid lorry
Mercedes-Benz Arocs, 425 kW, 6x4 rigid lorry
2020–2023 · 425 kW
42.3l/100 km
median; 39.9–43.7 across 7 declared configurations
Volvo FH, 413 kW, 6x4 rigid lorry
2020–2023 · 413 kW
40.2l/100 km
median; 39–44.6 across 4 declared configurations
What the numbers actually say
There is 2.1 l/100 km between these two (5.2%). 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 2,520 litres a year (£3,528). The declared figures for one of them alone span 5.6 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, 425 kW, 6x4 rigid lorry50,760 litres
£71,064 at the assumed price
Volvo FH, 413 kW, 6x4 rigid lorry48,240 litres
£67,536 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.