AllTruckData
Comparison · 6×4 lorry · long haul at 19.3 t

Scania P 420 B6x4 vs Volvo FMX, 285 kW, 6x4 rigid lorry

Scania P 420 B6x4

2023 · 309 kW
34.1l/100 km
median; 32.7–36.2 across 10 declared configurations

Volvo FMX, 285 kW, 6x4 rigid lorry

2021–2023 · 285 kW
35.9l/100 km
median; 35.4–41.4 across 14 declared configurations
Scania P 420 B6x4 and Volvo FMX, 285 kW, 6x4 rigid lorry side by side
SpecificationScania P 420 B6x4Volvo FMX, 285 kW, 6x4 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×4Declared6×4Declared
Registered new2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power309 kWDeclared285 kWDeclared
Engine displacement12.7 litresDeclared10.8 litresDeclared
Gearboxautomated, automaticDeclaredautomatedDeclared
Gross vehicle weight26,500–36,000 kgDeclaredmedian 30,000 kg, across 21 declared configurations29,000–36,000 kgDeclaredmedian 29,000 kg, across 26 declared configurations
Declared fuel, long haul34.1 l/100 km Declaredmedian; 32.7–36.2 l/100 km across 10 declared configurations35.9 l/100 km Declaredmedian; 35.4–41.4 l/100 km across 14 declared configurations
CO₂ per tonne-km46.26 g Declaredmedian; 44.38–49.06 g48.63 g Declaredmedian; 48.05–56.2 g

Fuel and CO₂: long haul at 19.3 t, 2022 declarations.

What the numbers actually say

There is 1.8 l/100 km between these two (5.2%). 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 2,160 litres a year (£3,024). The declared figures for one of them alone span 6 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

P 420 B6x4 full specificationFMX, 285 kW, 6x4 rigid lorry full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania P 420 B6x440,920 litres
£57,288 at the assumed price
Volvo FMX, 285 kW, 6x4 rigid lorry43,080 litres
£60,312 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.