AllTruckData
Comparison · 4×2 lorry · long haul at 14 t

DAF XD 340 FA vs Mercedes-Benz Arocs, 240 kW, 4x2 rigid lorry

Lower declared fuel

DAF XD 340 FA

2023–2025 · 251 kW
29.5l/100 km
median; 27.3–30.3 across 16 declared configurations

Mercedes-Benz Arocs, 240 kW, 4x2 rigid lorry

2017–2023 · 240 kW
33.6l/100 km
median; 31.6–40.7 across 14 declared configurations
DAF XD 340 FA and Mercedes-Benz Arocs, 240 kW, 4x2 rigid lorry side by side
SpecificationDAF XD 340 FAMercedes-Benz Arocs, 240 kW, 4x2 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2023–2025Registeredcentral 90% of records2017–2023Registeredcentral 90% of records
Engine power251 kWDeclared240 kWDeclared
Engine displacement10.8 litresDeclared10.7 litresDeclared
Gearboxautomated, automaticDeclaredautomated, manualDeclared
Emission classEURO VI ERegisteredEURO VI A, EURO VI C, EURO VI ERegistered
Gross vehicle weight19,500–21,500 kgRegisteredmedian 20,500 kg, across 2 type-approval versions and 70 records without one18,000–21,500 kgRegisteredmedian 19,500 kg, over 8 registrations
Kerb weight8,512–14,148 kgRegisteredmedian 10,740 kg, over 72 registrations10,805–18,600 kgRegisteredmedian 14,530 kg, over 8 registrations
Wheelbase3,800–6,100 mmRegisteredmedian 5,400 mm, over 72 registrations3,600–4,500 mmRegisteredmedian 4,200 mm, over 8 registrations
Overall length6,810–11,250 mmRegisteredmedian 9,700 mm, over 72 registrations6,750–8,990 mmRegisteredmedian 7,850 mm, over 8 registrations
Overall height3,020–4,000 mmRegisteredmedian 3,800 mm, over 69 registrations3,600 mmRegistered
Declared fuel, long haul29.5 l/100 km Declaredmedian; 27.3–30.3 l/100 km across 16 declared configurations33.6 l/100 km Declaredmedian; 31.6–40.7 l/100 km across 14 declared configurations
CO₂ per tonne-km55.06 g Declaredmedian; 51.06–56.71 g62.9 g Declaredmedian; 59.06–76 g

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

The DAF XD 340 FA declared 4.1 l/100 km less (13.8%) 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 4,920 litres a year, or £6,888. A gap this size is outside the 10% tolerance of declared figures.

XD 340 FA full specificationArocs, 240 kW, 4x2 rigid lorry full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
DAF XD 340 FA35,400 litres
£49,560 at the assumed price
Mercedes-Benz Arocs, 240 kW, 4x2 rigid lorry40,320 litres
£56,448 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.