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

Mercedes-Benz Actros, 315 kW, 4x2 tractor unit (2015–2020) vs Volvo FM, 308 kW, 4x2 tractor unit (2016–2019)

Lower declared fuel

Mercedes-Benz Actros, 315 kW, 4x2 tractor unit (2015–2020)

2015–2020 · 315 kW
32.7l/100 km
median; 29.7–39.5 across 203 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, 315 kW, 4x2 tractor unit (2015–2020) and Volvo FM, 308 kW, 4x2 tractor unit (2016–2019) side by side
SpecificationMercedes-Benz Actros, 315 kW, 4x2 tractor unit (2015–2020)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 new2015–2020Registeredcentral 90% of records2016–2019Registeredcentral 90% of records
Engine power315 kWDeclared308 kWDeclared
Engine displacement10.7 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI, EURO VI A, EURO VI C, EURO VI DRegisteredEURO 6, EURO VI B, EURO VI CRegistered
Gross vehicle weight18,000–20,500 kgRegisteredmedian 19,000 kg, across 74 type-approval versions and 34 records without one18,800–22,000 kgRegisteredmedian 20,500 kg, across 49 type-approval versions and 7 records without one
Kerb weight6,895–8,255 kgRegisteredmedian 7,446 kg, over 244 registrations6,487–7,964 kgRegisteredmedian 7,296 kg, over 181 registrations
Wheelbase3,700–3,850 mmRegisteredmedian 3,700 mm, over 244 registrations3,500–3,800 mmRegisteredmedian 3,800 mm, over 181 registrations
Overall length5,900–6,310 mmRegisteredmedian 6,160 mm, over 244 registrations5,680–6,210 mmRegisteredmedian 5,990 mm, over 181 registrations
Overall height3,480–3,950 mmRegisteredmedian 3,740 mm, over 8 registrations3,360–3,890 mmRegisteredmedian 3,850 mm, over 72 registrations
Declared fuel, long haul32.7 l/100 km Declaredmedian; 29.7–39.5 l/100 km across 203 declared configurations36.5 l/100 km Declaredmedian; 32.5–39.8 l/100 km across 20 declared configurations
CO₂ per tonne-km44.3 g Declaredmedian; 40.3–53.6 g49.5 g Declaredmedian; 44–53.9 g

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

What the numbers actually say

The Mercedes-Benz Actros, 315 kW, 4x2 tractor unit (2015–2020) declared 3.8 l/100 km less (11.6%) on the long haul at 19.3 t, 2019 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, 315 kW, 4x2 tractor unit (2015–2020) 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, 315 kW, 4x2 tractor unit (2015–2020)39,240 litres
£54,936 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.