AllTruckData
Comparison · 6×2 lorry · long haul at 19.3 t

Mercedes-Benz Arocs, 310 kW, 6x2 rigid lorry vs Scania R 420 B6x2*4

Mercedes-Benz Arocs, 310 kW, 6x2 rigid lorry

2016–2023 · 310 kW
36.5l/100 km
median; 33–39.6 across 28 declared configurations
Lower declared fuel

Scania R 420 B6x2*4

2022–2023 · 309 kW
29.1l/100 km
median; 27–31.6 across 32 declared configurations
Mercedes-Benz Arocs, 310 kW, 6x2 rigid lorry and Scania R 420 B6x2*4 side by side
SpecificationMercedes-Benz Arocs, 310 kW, 6x2 rigid lorryScania R 420 B6x2*4
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×2Declared6×2Declared
Registered new2016–2023Registeredcentral 90% of records2022–2023Registeredcentral 90% of records
Engine power310 kWDeclared309 kWDeclared
Engine displacement12.8 litresDeclared12.7 litresDeclared
Gearboxautomated, manualDeclaredautomated, automaticDeclared
Emission classEURO VI ARegisteredNot recorded
Gross vehicle weight27,000–28,000 kgRegisteredmedian 27,000 kg, over 7 registrations26,100–30,000 kgDeclaredmedian 27,000 kg, across 79 declared configurations
Kerb weight17,360–20,100 kgRegisteredmedian 18,235 kg, over 7 registrationsNot recorded
Wheelbase5,550–6,150 mmRegisteredmedian 6,150 mm, over 7 registrationsNot recorded
Overall length9,840–10,600 mmRegisteredmedian 9,950 mm, over 7 registrationsNot recorded
Declared fuel, long haul36.5 l/100 km Declaredmedian; 33–39.6 l/100 km across 28 declared configurations29.1 l/100 km Declaredmedian; 27–31.6 l/100 km across 32 declared configurations
CO₂ per tonne-km49.51 g Declaredmedian; 44.77–53.7 g39.41 g Declaredmedian; 36.58–42.87 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

The Scania R 420 B6x2*4 declared 7.4 l/100 km less (25.4%) on the long haul at 19.3 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 8,880 litres a year, or £12,432. A gap this size is outside the 10% tolerance of declared figures.

Arocs, 310 kW, 6x2 rigid lorry full specificationR 420 B6x2*4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 310 kW, 6x2 rigid lorry43,800 litres
£61,320 at the assumed price
Scania R 420 B6x2*434,920 litres
£48,888 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.