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

Volvo FH, 345 kW, 6x2 tractor unit (from 2020) vs Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022)

Lower declared fuel

Volvo FH, 345 kW, 6x2 tractor unit (from 2020)

2020–2026 · 345 kW
29.3l/100 km
median; 27–35.9 across 321 declared configurations

Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022)

2019–2022 · 345 kW
39.4l/100 km
median; 33.1–39.4 across 4 declared configurations
Volvo FH, 345 kW, 6x2 tractor unit (from 2020) and Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022) side by side
SpecificationVolvo FH, 345 kW, 6x2 tractor unit (from 2020)Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2020–2026Registeredcentral 90% of records2019–2022Registeredcentral 90% of records
Engine power345 kWDeclared345 kWDeclared
Engine displacement12.8 litresDeclared10.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO 6, EURO VI D, EURO VI ERegisteredEURO VIRegistered
Gross vehicle weight23,100–33,000 kgRegisteredmedian 27,000 kg, across 115 type-approval versions and 81 records without one27,000 kgRegistered
Kerb weight6,849–22,768 kgRegisteredmedian 8,893 kg, over 1,115 registrations8,800 kgRegistered
Wheelbase3,700–5,270 mmRegisteredmedian 4,100 mm, over 1,115 registrations4,100 mmRegistered
Overall length5,990–7,810 mmRegisteredmedian 6,510 mm, over 1,115 registrations6,450 mmRegistered
Overall height3,420–4,000 mmRegisteredmedian 3,850 mm, over 301 registrationsNot recorded
Declared fuel, long haul29.3 l/100 km Declaredmedian; 27–35.9 l/100 km across 321 declared configurations39.4 l/100 km Declaredmedian; 33.1–39.4 l/100 km across 4 declared configurations
CO₂ per tonne-km39.75 g Declaredmedian; 36.57–48.66 g53.5 g Declaredmedian; 44.9–53.5 g

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

What the numbers actually say

The Volvo FH, 345 kW, 6x2 tractor unit (from 2020) declared 10.1 l/100 km less (34.4%) 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 12,120 litres a year, or £16,968. A gap this size is outside the 10% tolerance of declared figures.

FH, 345 kW, 6x2 tractor unit (from 2020) full specificationFM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Volvo FH, 345 kW, 6x2 tractor unit (from 2020)35,160 litres
£49,224 at the assumed price
Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022)47,280 litres
£66,192 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.