Comparison · 4×2 lorry · long haul at 14 t
Mercedes-Benz Arocs, 375 kW, 4x2 rigid lorry vs Volvo FM, 375 kW, 4x2 rigid lorry
Mercedes-Benz Arocs, 375 kW, 4x2 rigid lorry
2020–2023 · 375 kW
34.8l/100 km
median; 33.4–36.4 across 5 declared configurations
Lower declared fuel
Volvo FM, 375 kW, 4x2 rigid lorry
2019–2023 · 375 kW
30.8l/100 km
median; 28.8–33.9 across 11 declared configurations
What the numbers actually say
The Volvo FM, 375 kW, 4x2 rigid lorry declared 4 l/100 km less (12.9%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 4,800 litres a year, or £6,720. A gap this size is outside the 10% tolerance of declared figures.
Fuel over a year
120,000 km · assumed priceMercedes-Benz Arocs, 375 kW, 4x2 rigid lorry41,760 litres
£58,464 at the assumed price
Volvo FM, 375 kW, 4x2 rigid lorry36,960 litres
£51,744 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.