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

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

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
Lower declared fuel

Volvo FMX, 345 kW, 6x2 tractor unit

2021–2022 · 345 kW
35.6l/100 km
median; 35.6–38.3 across 3 declared configurations
Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022) and Volvo FMX, 345 kW, 6x2 tractor unit side by side
SpecificationVolvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022)Volvo FMX, 345 kW, 6x2 tractor unit
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2022Registeredcentral 90% of records2021–2022Registeredcentral 90% of records
Engine power345 kWDeclared345 kWDeclared
Engine displacement10.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VIRegisteredNot recorded
Gross vehicle weight27,000 kgRegistered27,000–31,000 kgDeclaredmedian 31,000 kg, across 6 declared configurations
Kerb weight8,800 kgRegisteredNot recorded
Wheelbase4,100 mmRegisteredNot recorded
Overall length6,450 mmRegisteredNot recorded
Declared fuel, long haul39.4 l/100 km Declaredmedian; 33.1–39.4 l/100 km across 4 declared configurations35.6 l/100 km Declaredmedian; 35.6–38.3 l/100 km across 3 declared configurations
CO₂ per tonne-km53.5 g Declaredmedian; 44.9–53.5 g48.27 g Declaredmedian; 48.27–51.96 g

Fuel and CO₂: long haul at 19.3 t, 2021 declarations.

What the numbers actually say

The Volvo FMX, 345 kW, 6x2 tractor unit declared 3.8 l/100 km less (10.6%) on the long haul at 19.3 t, 2021 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.

FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022) full specificationFMX, 345 kW, 6x2 tractor unit full specification

Fuel over a year

120,000 km · assumed price
Volvo FM, 345 kW, 6x2 tractor unit, 10.8 L (2019–2022)47,280 litres
£66,192 at the assumed price
Volvo FMX, 345 kW, 6x2 tractor unit42,720 litres
£59,808 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.