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

Mercedes-Benz Arocs, 375 kW, 6x4 tractor unit vs Volvo FH, 375 kW, 6x4 tractor unit

Mercedes-Benz Arocs, 375 kW, 6x4 tractor unit

2015–2023 · 375 kW
39.9l/100 km
median; 37.7–43.1 across 18 declared configurations
Lower declared fuel

Volvo FH, 375 kW, 6x4 tractor unit

2019–2023 · 375 kW
34.2l/100 km
median; 29.9–43.7 across 128 declared configurations
Mercedes-Benz Arocs, 375 kW, 6x4 tractor unit and Volvo FH, 375 kW, 6x4 tractor unit side by side
SpecificationMercedes-Benz Arocs, 375 kW, 6x4 tractor unitVolvo FH, 375 kW, 6x4 tractor unit
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2015–2023Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power375 kWDeclared375 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI A, EURO VI D, EURO VI ERegisteredEURO 6, EURO VI B, EURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight29,000–33,000 kgRegisteredmedian 33,000 kg, across 4 type-approval versions and 2 records without one29,000–35,000 kgRegisteredmedian 32,000 kg, across 25 type-approval versions and 14 records without one
Kerb weight9,704–17,713 kgRegisteredmedian 10,559 kg, over 6 registrations9,240–18,891 kgRegisteredmedian 10,064 kg, over 46 registrations
Wheelbase4,650–5,250 mmRegisteredmedian 4,800 mm, over 6 registrations4,370–5,270 mmRegisteredmedian 4,570 mm, over 46 registrations
Overall length6,900–7,510 mmRegisteredmedian 7,110 mm, over 6 registrations6,700–7,680 mmRegisteredmedian 6,960 mm, over 46 registrations
Overall height3,510 mmRegistered3,510–4,000 mmRegisteredmedian 3,830 mm, over 17 registrations
Declared fuel, long haul39.9 l/100 km Declaredmedian; 37.7–43.1 l/100 km across 18 declared configurations34.2 l/100 km Declaredmedian; 29.9–43.7 l/100 km across 128 declared configurations
CO₂ per tonne-km54.05 g Declaredmedian; 51.09–58.5 g46.37 g Declaredmedian; 40.48–59.2 g

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

What the numbers actually say

The Volvo FH, 375 kW, 6x4 tractor unit declared 5.7 l/100 km less (16.6%) 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 6,840 litres a year, or £9,576. A gap this size is outside the 10% tolerance of declared figures.

Arocs, 375 kW, 6x4 tractor unit full specificationFH, 375 kW, 6x4 tractor unit full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Arocs, 375 kW, 6x4 tractor unit47,880 litres
£67,032 at the assumed price
Volvo FH, 375 kW, 6x4 tractor unit41,040 litres
£57,456 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.