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

MAN TGX 18.420 4x2, rigid lorry (2017–2019) vs MAN TGX 18.500 4x2, rigid lorry (2019)

MAN TGX 18.420 4x2, rigid lorry (2017–2019)

2017–2019 · 309 kW
33l/100 km
median; 31.5–35 across 67 declared configurations

MAN TGX 18.500 4x2, rigid lorry (2019)

2019 · 368 kW
33.4l/100 km
median; 31.5–36 across 45 declared configurations
MAN TGX 18.420 4x2, rigid lorry (2017–2019) and MAN TGX 18.500 4x2, rigid lorry (2019) side by side
SpecificationMAN TGX 18.420 4x2, rigid lorry (2017–2019)MAN TGX 18.500 4x2, rigid lorry (2019)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2017–2019Registeredcentral 90% of records2019Registeredcentral 90% of records
Engine power309 kWDeclared368 kWDeclared
Engine displacement12.4 litresDeclared12.4 litresDeclared
Gearboxautomated, manualDeclaredautomated, manualDeclared
Emission classEURO 6, EURO VI A, EURO VI CRegisteredEURO VI CRegistered
Gross vehicle weight15,000–21,000 kgRegisteredmedian 20,100 kg, over 15 registrations21,000 kgRegistered
Kerb weight8,892–13,829 kgRegisteredmedian 9,735 kg, over 15 registrations10,761 kgRegistered
Wheelbase3,600–5,500 mmRegisteredmedian 5,100 mm, over 15 registrations3,900 mmRegistered
Overall length7,350–10,130 mmRegisteredmedian 9,200 mm, over 15 registrations7,750 mmRegistered
Overall height4,000 mmRegistered3,920 mmRegistered
Declared fuel, long haul33 l/100 km Declaredmedian; 31.5–35 l/100 km across 67 declared configurations33.4 l/100 km Declaredmedian; 31.5–36 l/100 km across 45 declared configurations
CO₂ per tonne-km61.6 g Declaredmedian; 58.9–65.5 g62.5 g Declaredmedian; 58.9–67.4 g

Fuel and CO₂: long haul at 14 t, 2019 declarations.

What the numbers actually say

There is 0.4 l/100 km between these two (1.2%). 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 480 litres a year (£672). The declared figures for one of them alone span 4.5 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

TGX 18.420 4x2, rigid lorry (2017–2019) full specificationTGX 18.500 4x2, rigid lorry (2019) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
MAN TGX 18.420 4x2, rigid lorry (2017–2019)39,600 litres
£55,440 at the assumed price
MAN TGX 18.500 4x2, rigid lorry (2019)40,080 litres
£56,112 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.