AllTruckData
Comparison · 8×4 lorry · construction at 12.9 t

Volvo FMX, 345 kW, 8x4 rigid lorry, 10.8 L (2021–2023) vs Volvo FMX, 345 kW, 8x4 rigid lorry, 12.8 L (2021–2023)

Volvo FMX, 345 kW, 8x4 rigid lorry, 10.8 L (2021–2023)

2021–2023 · 345 kW
41.2l/100 km
median; 40.6–44.5 across 14 declared configurations

Volvo FMX, 345 kW, 8x4 rigid lorry, 12.8 L (2021–2023)

2021–2023 · 345 kW
43.7l/100 km
median; 38.8–47.5 across 80 declared configurations
Volvo FMX, 345 kW, 8x4 rigid lorry, 10.8 L (2021–2023) and Volvo FMX, 345 kW, 8x4 rigid lorry, 12.8 L (2021–2023) side by side
SpecificationVolvo FMX, 345 kW, 8x4 rigid lorry, 10.8 L (2021–2023)Volvo FMX, 345 kW, 8x4 rigid lorry, 12.8 L (2021–2023)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2021–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power345 kWDeclared345 kWDeclared
Engine displacement10.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classNot recordedEURO VI ERegistered
Gross vehicle weight36,000–40,000 kgDeclaredmedian 40,000 kg, across 39 declared configurations41,000–46,000 kgRegisteredmedian 43,000 kg, over 5 registrations
Kerb weightNot recorded15,457–18,184 kgRegisteredmedian 17,145 kg, over 5 registrations
WheelbaseNot recorded5,670–6,850 mmRegisteredmedian 6,470 mm, over 5 registrations
Overall lengthNot recorded8,590–9,450 mmRegisteredmedian 9,070 mm, over 5 registrations
Overall heightNot recorded3,330–3,830 mmRegisteredmedian 3,720 mm, over 4 registrations
Declared fuel, construction41.2 l/100 km Declaredmedian; 40.6–44.5 l/100 km across 14 declared configurations43.7 l/100 km Declaredmedian; 38.8–47.5 l/100 km across 80 declared configurations
CO₂ per tonne-km83.64 g Declaredmedian; 82.27–90.3 g88.64 g Declaredmedian; 78.7–96.44 g

Fuel and CO₂: construction at 12.9 t, 2022 declarations.

What the numbers actually say

There is 2.5 l/100 km between these two (6%). 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 3,000 litres a year (£4,200). The declared figures for one of them alone span 8.7 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

FMX, 345 kW, 8x4 rigid lorry, 10.8 L (2021–2023) full specificationFMX, 345 kW, 8x4 rigid lorry, 12.8 L (2021–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Volvo FMX, 345 kW, 8x4 rigid lorry, 10.8 L (2021–2023)49,440 litres
£69,216 at the assumed price
Volvo FMX, 345 kW, 8x4 rigid lorry, 12.8 L (2021–2023)52,440 litres
£73,416 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.