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

Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2021–2023) vs Volvo FMX, 375 kW, 4x2 tractor unit

Lower declared fuel

Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2021–2023)

2021–2023 · 375 kW
29.8l/100 km
median; 27.2–39 across 2,557 declared configurations

Volvo FMX, 375 kW, 4x2 tractor unit

2021–2023 · 375 kW
34.3l/100 km
median; 32–40.9 across 24 declared configurations
Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2021–2023) and Volvo FMX, 375 kW, 4x2 tractor unit side by side
SpecificationMercedes-Benz Actros, 375 kW, 4x2 tractor unit (2021–2023)Volvo FMX, 375 kW, 4x2 tractor unit
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2021–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power375 kWDeclared375 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI, EURO VI D, EURO VI ERegisteredNot recorded
Gross vehicle weight18,000–20,500 kgRegisteredmedian 19,000 kg, across 20 type-approval versions and 55 records without one20,100–22,000 kgDeclaredmedian 21,000 kg, across 63 declared configurations
Kerb weight7,320–8,830 kgRegisteredmedian 8,281 kg, over 106 registrationsNot recorded
Wheelbase3,700–4,000 mmRegisteredmedian 3,700 mm, over 106 registrationsNot recorded
Overall length5,860–6,550 mmRegisteredmedian 6,160 mm, over 106 registrationsNot recorded
Overall height3,500–4,000 mmRegisteredmedian 3,950 mm, over 76 registrationsNot recorded
Declared fuel, long haul29.8 l/100 km Declaredmedian; 27.2–39 l/100 km across 2,557 declared configurations34.3 l/100 km Declaredmedian; 32–40.9 l/100 km across 24 declared configurations
CO₂ per tonne-km40.34 g Declaredmedian; 36.84–52.86 g46.55 g Declaredmedian; 43.34–55.4 g

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

What the numbers actually say

The Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2021–2023) declared 4.5 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 5,400 litres a year, or £7,560. A gap this size is outside the 10% tolerance of declared figures.

Actros, 375 kW, 4x2 tractor unit (2021–2023) full specificationFMX, 375 kW, 4x2 tractor unit full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 375 kW, 4x2 tractor unit (2021–2023)35,760 litres
£50,064 at the assumed price
Volvo FMX, 375 kW, 4x2 tractor unit41,160 litres
£57,624 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.