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

Mercedes-Benz Actros, 380 kW, 4x2 tractor unit vs Volvo FMX, 375 kW, 4x2 tractor unit

Lower declared fuel

Mercedes-Benz Actros, 380 kW, 4x2 tractor unit

2020–2023 · 380 kW
30.4l/100 km
median; 28.9–40.1 across 40 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, 380 kW, 4x2 tractor unit and Volvo FMX, 375 kW, 4x2 tractor unit side by side
SpecificationMercedes-Benz Actros, 380 kW, 4x2 tractor unitVolvo 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 new2020–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power380 kWDeclared375 kWDeclared
Engine displacement15.6 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI ERegisteredNot recorded
Gross vehicle weight19,000–20,500 kgRegisteredmedian 19,000 kg, across 1 type-approval version and 1 record without one20,100–22,000 kgDeclaredmedian 21,000 kg, across 63 declared configurations
Kerb weight8,194–8,870 kgRegisteredmedian 8,194 kg, over 2 registrationsNot recorded
Wheelbase3,850–4,000 mmRegisteredmedian 3,850 mm, over 2 registrationsNot recorded
Overall length6,310–6,450 mmRegisteredmedian 6,310 mm, over 2 registrationsNot recorded
Declared fuel, long haul30.4 l/100 km Declaredmedian; 28.9–40.1 l/100 km across 40 declared configurations34.3 l/100 km Declaredmedian; 32–40.9 l/100 km across 24 declared configurations
CO₂ per tonne-km41.22 g Declaredmedian; 39.19–54.4 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, 380 kW, 4x2 tractor unit declared 3.9 l/100 km less (12.8%) 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 4,680 litres a year, or £6,552. A gap this size is outside the 10% tolerance of declared figures.

Actros, 380 kW, 4x2 tractor unit full specificationFMX, 375 kW, 4x2 tractor unit full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 380 kW, 4x2 tractor unit36,480 litres
£51,072 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.