AllTruckData
Comparison · 6×4 tractor unit · long haul at 19.3 t

Mercedes-Benz Arocs, 425 kW, 6x4 tractor unit vs Scania S 580 A6x4

Mercedes-Benz Arocs, 425 kW, 6x4 tractor unit

2015–2023 · 425 kW
41.7l/100 km
median; 38.5–44.8 across 21 declared configurations
Lower declared fuel

Scania S 580 A6x4

2018–2022 · 427 kW
36.2l/100 km
median; 33–39.8 across 7 declared configurations
Mercedes-Benz Arocs, 425 kW, 6x4 tractor unit and Scania S 580 A6x4 side by side
SpecificationMercedes-Benz Arocs, 425 kW, 6x4 tractor unitScania S 580 A6x4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2015–2023Registeredcentral 90% of records2018–2022Registeredcentral 90% of records
Engine power425 kWDeclared427 kWDeclared
Engine displacement15.6 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI A, EURO VI D, EURO VI ERegisteredEURO 6, EURO VI C, EURO VI DRegistered
Gross vehicle weight28,000–33,000 kgRegisteredmedian 33,000 kg, across 5 type-approval versions and 6 records without one27,000–35,000 kgRegisteredmedian 30,000 kg, across 2 type-approval versions and 7 records without one
Kerb weight10,312–16,775 kgRegisteredmedian 10,552 kg, over 21 registrations10,175–11,070 kgRegisteredmedian 10,560 kg, over 10 registrations
Wheelbase4,800–5,250 mmRegisteredmedian 4,800 mm, over 21 registrations4,300–4,700 mmRegisteredmedian 4,500 mm, over 10 registrations
Overall length7,060–7,530 mmRegisteredmedian 7,060 mm, over 21 registrations6,630–7,100 mmRegisteredmedian 6,880 mm, over 10 registrations
Overall height3,930–4,000 mmRegisteredmedian 3,930 mm, over 6 registrations4,000 mmRegistered
Declared fuel, long haul41.7 l/100 km Declaredmedian; 38.5–44.8 l/100 km across 21 declared configurations36.2 l/100 km Declaredmedian; 33–39.8 l/100 km across 7 declared configurations
CO₂ per tonne-km56.51 g Declaredmedian; 52.22–60.8 g49.1 g Declaredmedian; 44.8–53.9 g

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

What the numbers actually say

The Scania S 580 A6x4 declared 5.5 l/100 km less (15.1%) 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 6,600 litres a year, or £9,240. A gap this size is outside the 10% tolerance of declared figures.

Arocs, 425 kW, 6x4 tractor unit full specificationS 580 A6x4 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 425 kW, 6x4 tractor unit50,040 litres
£70,056 at the assumed price
Scania S 580 A6x443,440 litres
£60,816 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.