AllTruckData
Comparison · 6×2 tractor unit · long haul at 19.3 t

Volvo FH, 375 kW, 6x2 tractor unit (2020–2025) vs Volvo FM, 375 kW, 6x2 tractor unit (2019–2023)

Volvo FH, 375 kW, 6x2 tractor unit (2020–2025)

2020–2025 · 375 kW
29.7l/100 km
median; 27.5–36.5 across 778 declared configurations

Volvo FM, 375 kW, 6x2 tractor unit (2019–2023)

2019–2023 · 375 kW
32.6l/100 km
median; 29.3–37 across 13 declared configurations
Volvo FH, 375 kW, 6x2 tractor unit (2020–2025) and Volvo FM, 375 kW, 6x2 tractor unit (2019–2023) side by side
SpecificationVolvo FH, 375 kW, 6x2 tractor unit (2020–2025)Volvo FM, 375 kW, 6x2 tractor unit (2019–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2020–2025Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power375 kWDeclared375 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI, EURO VI D, EURO VI ERegisteredEURO VI, EURO VI A, EURO VI B, EURO VI C, EURO VI D, EURO VI ERegistered
Gross vehicle weight23,500–32,500 kgRegisteredmedian 27,000 kg, across 118 type-approval versions and 136 records without one23,100–32,000 kgRegisteredmedian 27,000 kg, across 9 type-approval versions and 5 records without one
Kerb weight5,901–21,990 kgRegisteredmedian 9,081 kg, over 1,189 registrations8,047–20,635 kgRegisteredmedian 8,648 kg, over 26 registrations
Wheelbase3,800–5,270 mmRegisteredmedian 4,100 mm, over 1,189 registrations3,800–5,070 mmRegisteredmedian 4,100 mm, over 26 registrations
Overall length5,990–9,820 mmRegisteredmedian 6,510 mm, over 1,189 registrations6,190–7,750 mmRegisteredmedian 6,510 mm, over 26 registrations
Overall height3,200–4,000 mmRegisteredmedian 3,910 mm, over 257 registrations3,130–4,000 mmRegisteredmedian 3,170 mm, over 7 registrations
Declared fuel, long haul29.7 l/100 km Declaredmedian; 27.5–36.5 l/100 km across 778 declared configurations32.6 l/100 km Declaredmedian; 29.3–37 l/100 km across 13 declared configurations
CO₂ per tonne-km40.31 g Declaredmedian; 37.3–49.47 g44.19 g Declaredmedian; 39.76–50.2 g

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

What the numbers actually say

There is 2.9 l/100 km between these two (9.7%). 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 3,480 litres a year (£4,872). The declared figures for one of them alone span 9 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

FH, 375 kW, 6x2 tractor unit (2020–2025) full specificationFM, 375 kW, 6x2 tractor unit (2019–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Volvo FH, 375 kW, 6x2 tractor unit (2020–2025)35,640 litres
£49,896 at the assumed price
Volvo FM, 375 kW, 6x2 tractor unit (2019–2023)39,120 litres
£54,768 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.