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

MAN TGS 18.430 4x2, rigid lorry (2020–2023) vs Volvo FM, 315 kW, 4x2 rigid lorry

MAN TGS 18.430 4x2, rigid lorry (2020–2023)

2020–2023 · 316 kW
30.6l/100 km
median; 28.6–39.1 across 83 declared configurations

Volvo FM, 315 kW, 4x2 rigid lorry

2019–2023 · 315 kW
31.7l/100 km
median; 27.7–44.1 across 47 declared configurations
MAN TGS 18.430 4x2, rigid lorry (2020–2023) and Volvo FM, 315 kW, 4x2 rigid lorry side by side
SpecificationMAN TGS 18.430 4x2, rigid lorry (2020–2023)Volvo FM, 315 kW, 4x2 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2020–2023Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power316 kWDeclared315 kWDeclared
Engine displacement12.4 litresDeclared12.8 litresDeclared
Gearboxautomated, automatic, manualDeclaredautomated, automaticDeclared
Gross vehicle weight18,000–21,000 kgDeclaredmedian 20,500 kg, across 464 declared configurations18,600–23,000 kgDeclaredmedian 21,000 kg, across 277 declared configurations
Declared fuel, long haul30.6 l/100 km Declaredmedian; 28.6–39.1 l/100 km across 83 declared configurations31.7 l/100 km Declaredmedian; 27.7–44.1 l/100 km across 47 declared configurations
CO₂ per tonne-km57.13 g Declaredmedian; 53.46–73.2 g59.25 g Declaredmedian; 51.73–82.42 g

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

What the numbers actually say

There is 1.1 l/100 km between these two (3.5%). 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 1,320 litres a year (£1,848). The declared figures for one of them alone span 16.4 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Fuel over a year

120,000 km · assumed price
MAN TGS 18.430 4x2, rigid lorry (2020–2023)36,720 litres
£51,408 at the assumed price
Volvo FM, 315 kW, 4x2 rigid lorry38,040 litres
£53,256 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.