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

Mercedes-Benz Arocs, 315 kW, 4x2 rigid lorry vs Scania R 420 B4x2

Mercedes-Benz Arocs, 315 kW, 4x2 rigid lorry

2020–2023 · 315 kW
34.5l/100 km
median; 32.3–42 across 13 declared configurations
Lower declared fuel

Scania R 420 B4x2

2022–2025 · 309 kW
26.1l/100 km
median; 25.4–27.6 across 19 declared configurations
Mercedes-Benz Arocs, 315 kW, 4x2 rigid lorry and Scania R 420 B4x2 side by side
SpecificationMercedes-Benz Arocs, 315 kW, 4x2 rigid lorryScania R 420 B4x2
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2020–2023Registeredcentral 90% of records2022–2025Registeredcentral 90% of records
Engine power315 kWDeclared309 kWDeclared
Engine displacement10.7 litresDeclared12.7 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classNot recordedEURO VI ERegistered
Gross vehicle weight18,000–22,000 kgDeclaredmedian 19,000 kg, across 65 declared configurations19,000–21,000 kgRegisteredmedian 20,500 kg, over 4 registrations
Kerb weightNot recorded9,397–10,559 kgRegisteredmedian 9,533 kg, over 4 registrations
WheelbaseNot recorded5,350–6,350 mmRegisteredmedian 5,550 mm, over 4 registrations
Overall lengthNot recorded9,350–10,980 mmRegisteredmedian 9,930 mm, over 4 registrations
Overall heightNot recorded3,950–4,000 mmRegisteredmedian 3,950 mm, over 4 registrations
Declared fuel, long haul34.5 l/100 km Declaredmedian; 32.3–42 l/100 km across 13 declared configurations26.1 l/100 km Declaredmedian; 25.4–27.6 l/100 km across 19 declared configurations
CO₂ per tonne-km64.5 g Declaredmedian; 60.5–78.5 g48.81 g Declaredmedian; 47.46–51.53 g

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

What the numbers actually say

The Scania R 420 B4x2 declared 8.4 l/100 km less (32.1%) 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 10,080 litres a year, or £14,112. A gap this size is outside the 10% tolerance of declared figures.

Arocs, 315 kW, 4x2 rigid lorry full specificationR 420 B4x2 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 315 kW, 4x2 rigid lorry41,400 litres
£57,960 at the assumed price
Scania R 420 B4x231,320 litres
£43,848 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.