AllTruckData
Comparison · 4×2 tractor unit · long haul at 19.3 t

Mercedes-Benz Arocs, 390 kW, 4x2 tractor unit vs Scania S 540 A4x2, tractor unit (2020–2022)

Mercedes-Benz Arocs, 390 kW, 4x2 tractor unit

2020–2023 · 390 kW
36.5l/100 km
median; 30.5–41.1 across 42 declared configurations
Lower declared fuel

Scania S 540 A4x2, tractor unit (2020–2022)

2020–2022 · 397 kW
29.1l/100 km
median; 26.8–33.1 across 170 declared configurations
Mercedes-Benz Arocs, 390 kW, 4x2 tractor unit and Scania S 540 A4x2, tractor unit (2020–2022) side by side
SpecificationMercedes-Benz Arocs, 390 kW, 4x2 tractor unitScania S 540 A4x2, tractor unit (2020–2022)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2020–2023Registeredcentral 90% of records2020–2022Registeredcentral 90% of records
Engine power390 kWDeclared397 kWDeclared
Engine displacement12.8 litresDeclared12.7 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classNot recordedEURO VI D, EURO VI ERegistered
Gross vehicle weight18,000–20,500 kgDeclaredmedian 18,000 kg, across 100 declared configurations18,000–22,000 kgRegisteredmedian 19,000 kg, across 12 type-approval versions and 8 records without one
Kerb weightNot recorded7,837–9,689 kgRegisteredmedian 8,646 kg, over 43 registrations
WheelbaseNot recorded3,600–3,950 mmRegisteredmedian 3,750 mm, over 43 registrations
Overall lengthNot recorded5,840–6,490 mmRegisteredmedian 5,960 mm, over 43 registrations
Overall heightNot recorded3,640–4,000 mmRegisteredmedian 4,000 mm, over 24 registrations
Declared fuel, long haul36.5 l/100 km Declaredmedian; 30.5–41.1 l/100 km across 42 declared configurations29.1 l/100 km Declaredmedian; 26.8–33.1 l/100 km across 170 declared configurations
CO₂ per tonne-km49.46 g Declaredmedian; 41.31–55.8 g39.49 g Declaredmedian; 36.27–44.91 g

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

What the numbers actually say

The Scania S 540 A4x2, tractor unit (2020–2022) 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, 390 kW, 4x2 tractor unit full specificationS 540 A4x2, tractor unit (2020–2022) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 390 kW, 4x2 tractor unit43,800 litres
£61,320 at the assumed price
Scania S 540 A4x2, tractor unit (2020–2022)34,920 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.