AllTruckData
Comparison · 6×2 lorry · long haul at 19.3 t

Scania G 420 B6x2*4 vs Scania P 420 B6x2

Scania G 420 B6x2*4

2022–2023 · 309 kW
29.6l/100 km
median; 27.5–32.2 across 63 declared configurations

Scania P 420 B6x2

2022–2023 · 309 kW
29.8l/100 km
median; 28.6–31.6 across 21 declared configurations
Scania G 420 B6x2*4 and Scania P 420 B6x2 side by side
SpecificationScania G 420 B6x2*4Scania P 420 B6x2
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×2Declared6×2Declared
Registered new2022–2023Registeredcentral 90% of records2022–2023Registeredcentral 90% of records
Engine power309 kWDeclared309 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
Gearboxautomated, automaticDeclaredautomated, automaticDeclared
Gross vehicle weight26,500–31,000 kgDeclaredmedian 27,000 kg, across 133 declared configurations26,100–31,000 kgDeclaredmedian 27,000 kg, across 30 declared configurations
Declared fuel, long haul29.6 l/100 km Declaredmedian; 27.5–32.2 l/100 km across 63 declared configurations29.8 l/100 km Declaredmedian; 28.6–31.6 l/100 km across 21 declared configurations
CO₂ per tonne-km40.08 g Declaredmedian; 37.26–43.68 g40.44 g Declaredmedian; 38.82–42.84 g

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

What the numbers actually say

There is 0.2 l/100 km between these two (0.6%). 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 240 litres a year (£336). The declared figures for one of them alone span 4.7 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

G 420 B6x2*4 full specificationP 420 B6x2 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania G 420 B6x2*435,520 litres
£49,728 at the assumed price
Scania P 420 B6x235,760 litres
£50,064 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.