Comparison · 4×2 lorry · long haul at 14 t

MAN TGX 18.470 4x2, rigid lorry (2020–2023) vs Volvo FMX, 345 kW, 4x2 rigid lorry, 12.8 L (2021–2023)

Lower declared fuel

MAN TGX 18.470 4x2, rigid lorry (2020–2023)

2020–2023 · 346 kW
28.9l/100 km
median; 27.9–31.6 across 80 declared configurations

Volvo FMX, 345 kW, 4x2 rigid lorry, 12.8 L (2021–2023)

2021–2023 · 345 kW
32.8l/100 km
median; 30.3–37.2 across 11 declared configurations
MAN TGX 18.470 4x2, rigid lorry (2020–2023) and Volvo FMX, 345 kW, 4x2 rigid lorry, 12.8 L (2021–2023) side by side
SpecificationMAN TGX 18.470 4x2, rigid lorry (2020–2023)Volvo FMX, 345 kW, 4x2 rigid lorry, 12.8 L (2021–2023)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2020–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power346 kWDeclared345 kWDeclared
Engine displacement12.4 litresDeclared12.8 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO VI D, EURO VI ERegisteredNot recorded
Gross vehicle weight18,000–21,000 kgRegisteredmedian 20,500 kg, over 9 registrations21,000–23,000 kgDeclaredmedian 22,000 kg, across 25 declared configurations
Kerb weight9,143–12,612 kgRegisteredmedian 9,181 kg, over 9 registrationsNot recorded
Wheelbase5,500–6,700 mmRegisteredmedian 5,500 mm, over 9 registrationsNot recorded
Overall length9,600–11,920 mmRegisteredmedian 9,650 mm, over 9 registrationsNot recorded
Overall height4,000 mmRegisteredNot recorded
Declared fuel, long haul28.9 l/100 km Declaredmedian; 27.9–31.6 l/100 km across 80 declared configurations32.8 l/100 km Declaredmedian; 30.3–37.2 l/100 km across 11 declared configurations
CO₂ per tonne-km53.97 g Declaredmedian; 52.11–59.1 g61.3 g Declaredmedian; 56.7–69.59 g

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

The MAN TGX 18.470 4x2, rigid lorry (2020–2023) declared 3.9 l/100 km less (13.4%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 4,680 litres a year, or £6,552. A gap this size is outside the 10% tolerance of declared figures.

Fuel over a year

120,000 km · assumed price
MAN TGX 18.470 4x2, rigid lorry (2020–2023)34,680 litres
£48,552 at the assumed price
Volvo FMX, 345 kW, 4x2 rigid lorry, 12.8 L (2021–2023)39,360 litres
£55,104 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.