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

Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021) vs Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2014–2021)

Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021)

2019–2021 · 309 kW
37.2l/100 km
median; 33.9–37.2 across 7 declared configurations
Lower declared fuel

Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2014–2021)

2014–2021 · 310 kW
31.6l/100 km
median; 29.4–37.9 across 370 declared configurations
Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021) and Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2014–2021) side by side
SpecificationIveco Stralis, 309 kW, 4x2 tractor unit (2019–2021)Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2014–2021)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2021Registeredcentral 90% of records2014–2021Registeredcentral 90% of records
Engine power309 kWDeclared310 kWDeclared
Engine displacement11.1 litresDeclared12.8 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classNot recordedEURO 5, EURO 6, EURO V, EURO VI, EURO VI A, EURO VI C, EURO VI DRegistered
Gross vehicle weight19,000–20,000 kgDeclaredmedian 20,000 kg, across 38 declared configurations17,500–20,500 kgRegisteredmedian 19,000 kg, across 211 type-approval versions and 181 records without one
Kerb weightNot recorded7,375–8,542 kgRegisteredmedian 7,950 kg, over 1,389 registrations
WheelbaseNot recorded3,550–4,000 mmRegisteredmedian 3,700 mm, over 1,389 registrations
Overall lengthNot recorded5,860–6,550 mmRegisteredmedian 6,160 mm, over 1,389 registrations
Overall heightNot recorded3,760–4,000 mmRegisteredmedian 3,930 mm, over 170 registrations
Declared fuel, long haul37.2 l/100 km Declaredmedian; 33.9–37.2 l/100 km across 7 declared configurations31.6 l/100 km Declaredmedian; 29.4–37.9 l/100 km across 370 declared configurations
CO₂ per tonne-km50.5 g Declaredmedian; 46–50.5 g42.8 g Declaredmedian; 39.8–51.4 g

Fuel and CO₂: long haul at 19.3 t, 2020 declarations.

What the numbers actually say

The Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2014–2021) declared 5.6 l/100 km less (17.7%) on the long haul at 19.3 t, 2020 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 6,720 litres a year, or £9,408. A gap this size is outside the 10% tolerance of declared figures.

Fuel over a year

120,000 km · assumed price
Iveco Stralis, 309 kW, 4x2 tractor unit (2019–2021)44,640 litres
£62,496 at the assumed price
Mercedes-Benz Actros, 310 kW, 4x2 tractor unit (2014–2021)37,920 litres
£53,088 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.