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

Mercedes-Benz Actros, 235 kW, 4x2 tractor unit vs Volvo FM, 251 kW, 4x2 tractor unit (2019–2023)

Mercedes-Benz Actros, 235 kW, 4x2 tractor unit

2018–2023 · 235 kW
34.4l/100 km
median; 34.4–35.3 across 4 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, 235 kW, 4x2 tractor unit and Volvo FM, 251 kW, 4x2 tractor unit (2019–2023) side by side
SpecificationMercedes-Benz Actros, 235 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 power235 kWDeclared251 kWDeclared
Engine displacement7.7 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI C, EURO VI D, EURO VI ERegisteredEURO 6, EURO VI D, EURO VI ERegistered
Gross vehicle weight18,000–19,000 kgRegisteredmedian 19,000 kg, across 5 type-approval versions and 44 records without one18,200–21,000 kgRegisteredmedian 20,500 kg, across 14 type-approval versions and 2 records without one
Kerb weight6,427–6,945 kgRegisteredmedian 6,817 kg, over 54 registrations6,828–7,650 kgRegisteredmedian 7,050 kg, over 72 registrations
Wheelbase3,700–3,720 mmRegisteredmedian 3,700 mm, over 54 registrations3,600–3,800 mmRegisteredmedian 3,800 mm, over 72 registrations
Overall length5,920–6,250 mmRegisteredmedian 6,160 mm, over 54 registrations5,790–5,990 mmRegisteredmedian 5,990 mm, over 72 registrations
Overall height3,450–3,910 mmRegisteredmedian 3,850 mm, over 19 registrations3,380–3,890 mmRegisteredmedian 3,820 mm, over 18 registrations
Declared fuel, long haul34.4 l/100 km Declaredmedian; 34.4–35.3 l/100 km across 4 declared configurations29.6 l/100 km Declaredmedian; 28.4–42.1 l/100 km across 18 declared configurations
CO₂ per tonne-km46.69 g Declaredmedian; 46.69–47.81 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 4.8 l/100 km less (16.2%) 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 5,760 litres a year, or £8,064. A gap this size is outside the 10% tolerance of declared figures.

Actros, 235 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, 235 kW, 4x2 tractor unit41,280 litres
£57,792 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.