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

Mercedes-Benz Actros, 260 kW, 4x2 tractor unit vs Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)

Mercedes-Benz Actros, 260 kW, 4x2 tractor unit

2018–2023 · 260 kW
33.4l/100 km
median; 32.2–40.9 across 9 declared configurations
Lower declared fuel

Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)

2019–2023 · 251 kW
29.6l/100 km
median; 28.4–42.1 across 18 declared configurations
Mercedes-Benz Actros, 260 kW, 4x2 tractor unit and Volvo FM, 251 kW, 4x2 tractor unit (2019–2023) side by side
SpecificationMercedes-Benz Actros, 260 kW, 4x2 tractor unitVolvo FM, 251 kW, 4x2 tractor unit (2019–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2018–2023Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power260 kWDeclared251 kWDeclared
Engine displacement7.7 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI, EURO VI C, EURO VI D, EURO VI ERegisteredEURO 6, EURO VI D, EURO VI ERegistered
Gross vehicle weight17,800–19,000 kgRegisteredmedian 18,000 kg, across 4 type-approval versions and 7 records without one18,200–21,000 kgRegisteredmedian 20,500 kg, across 14 type-approval versions and 2 records without one
Kerb weight6,377–6,845 kgRegisteredmedian 6,545 kg, over 15 registrations6,828–7,650 kgRegisteredmedian 7,050 kg, over 72 registrations
Wheelbase3,700 mmRegistered3,600–3,800 mmRegisteredmedian 3,800 mm, over 72 registrations
Overall length5,860–6,150 mmRegisteredmedian 5,920 mm, over 15 registrations5,790–5,990 mmRegisteredmedian 5,990 mm, over 72 registrations
Overall height3,620–3,920 mmRegisteredmedian 3,870 mm, over 12 registrations3,380–3,890 mmRegisteredmedian 3,820 mm, over 18 registrations
Declared fuel, long haul33.4 l/100 km Declaredmedian; 32.2–40.9 l/100 km across 9 declared configurations29.6 l/100 km Declaredmedian; 28.4–42.1 l/100 km across 18 declared configurations
CO₂ per tonne-km45.2 g Declaredmedian; 43.59–55.5 g40.17 g Declaredmedian; 38.52–57.1 g

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

What the numbers actually say

The Volvo FM, 251 kW, 4x2 tractor unit (2019–2023) declared 3.8 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 4,560 litres a year, or £6,384. A gap this size is outside the 10% tolerance of declared figures.

Actros, 260 kW, 4x2 tractor unit full specificationFM, 251 kW, 4x2 tractor unit (2019–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 260 kW, 4x2 tractor unit40,080 litres
£56,112 at the assumed price
Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)35,520 litres
£49,728 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.