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

Mercedes-Benz Actros, 335 kW, 4x2 tractor unit (2018–2020) vs Volvo FM, 308 kW, 4x2 tractor unit (2016–2019)

Mercedes-Benz Actros, 335 kW, 4x2 tractor unit (2018–2020)

2018–2020 · 335 kW
33.9l/100 km
median; 30–40.2 across 291 declared configurations

Volvo FM, 308 kW, 4x2 tractor unit (2016–2019)

2016–2019 · 308 kW
36.5l/100 km
median; 32.5–39.8 across 20 declared configurations
Mercedes-Benz Actros, 335 kW, 4x2 tractor unit (2018–2020) and Volvo FM, 308 kW, 4x2 tractor unit (2016–2019) side by side
SpecificationMercedes-Benz Actros, 335 kW, 4x2 tractor unit (2018–2020)Volvo FM, 308 kW, 4x2 tractor unit (2016–2019)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2018–2020Registeredcentral 90% of records2016–2019Registeredcentral 90% of records
Engine power335 kWDeclared308 kWDeclared
Engine displacement10.7 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI C, EURO VI DRegisteredEURO 6, EURO VI B, EURO VI CRegistered
Gross vehicle weight18,000–20,500 kgRegisteredmedian 19,000 kg, across 28 type-approval versions and 5 records without one18,800–22,000 kgRegisteredmedian 20,500 kg, across 49 type-approval versions and 7 records without one
Kerb weight6,798–8,376 kgRegisteredmedian 7,640 kg, over 124 registrations6,487–7,964 kgRegisteredmedian 7,296 kg, over 181 registrations
Wheelbase3,700–3,850 mmRegisteredmedian 3,700 mm, over 124 registrations3,500–3,800 mmRegisteredmedian 3,800 mm, over 181 registrations
Overall length5,900–6,310 mmRegisteredmedian 6,160 mm, over 124 registrations5,680–6,210 mmRegisteredmedian 5,990 mm, over 181 registrations
Overall height3,740–4,000 mmRegisteredmedian 3,800 mm, over 13 registrations3,360–3,890 mmRegisteredmedian 3,850 mm, over 72 registrations
Declared fuel, long haul33.9 l/100 km Declaredmedian; 30–40.2 l/100 km across 291 declared configurations36.5 l/100 km Declaredmedian; 32.5–39.8 l/100 km across 20 declared configurations
CO₂ per tonne-km45.9 g Declaredmedian; 40.6–54.4 g49.5 g Declaredmedian; 44–53.9 g

Fuel and CO₂: long haul at 19.3 t, 2019 declarations.

What the numbers actually say

There is 2.6 l/100 km between these two (7.6%). That is inside the 10% tolerance of declared figures, so on fuel alone neither is the better choice: at 120,000 km a year and an assumed £1.40 a litre the gap would be about 3,120 litres a year (£4,368). The declared figures for one of them alone span 10.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Actros, 335 kW, 4x2 tractor unit (2018–2020) full specificationFM, 308 kW, 4x2 tractor unit (2016–2019) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Mercedes-Benz Actros, 335 kW, 4x2 tractor unit (2018–2020)40,680 litres
£56,952 at the assumed price
Volvo FM, 308 kW, 4x2 tractor unit (2016–2019)43,800 litres
£61,320 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.