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

Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024) vs Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit

Lower declared fuel

Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024)

2021–2024 · 310 kW
30.1l/100 km
median; 26.9–38.5 across 370 declared configurations

Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit

2019–2023 · 310 kW
35.3l/100 km
median; 35.3–36.1 across 5 declared configurations
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024) and Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit side by side
SpecificationMercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024)Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2021–2024Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power310 kWDeclared310 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI D, EURO VI ERegisteredEURO VI DRegistered
Gross vehicle weight18,000–20,500 kgRegisteredmedian 19,000 kg, across 29 type-approval versions and 470 records without one18,000 kgRegistered
Kerb weight7,464–8,392 kgRegisteredmedian 7,870 kg, over 782 registrations7,529 kgRegistered
Wheelbase3,550–4,000 mmRegisteredmedian 3,700 mm, over 782 registrations3,900 mmRegistered
Overall length5,850–6,460 mmRegisteredmedian 6,160 mm, over 782 registrations6,200 mmRegistered
Overall height3,620–4,000 mmRegisteredmedian 3,920 mm, over 757 registrationsNot recorded
Declared fuel, long haul30.1 l/100 km Declaredmedian; 26.9–38.5 l/100 km across 370 declared configurations35.3 l/100 km Declaredmedian; 35.3–36.1 l/100 km across 5 declared configurations
CO₂ per tonne-km40.77 g Declaredmedian; 36.42–52.1 g47.81 g Declaredmedian; 47.81–48.93 g

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

What the numbers actually say

The Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024) declared 5.2 l/100 km less (17.2%) 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 6,240 litres a year, or £8,736. A gap this size is outside the 10% tolerance of declared figures.

Actros, 310 kW, 4x2 tractor unit (2021–2024) full specificationArocs, 310 kW, 4x2 tractor unit full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2021–2024)36,120 litres
£50,568 at the assumed price
Mercedes-Benz Arocs, 310 kW, 4x2 tractor unit42,360 litres
£59,304 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.