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

Scania G 420 B8x4*4 vs Scania P 420 B8x4*4

Scania G 420 B8x4*4

2022–2023 · 309 kW
38.3l/100 km
median; 38–38.7 across 3 declared configurations

Scania P 420 B8x4*4

2022–2023 · 309 kW
36.9l/100 km
median; 36.6–42.2 across 6 declared configurations
Scania G 420 B8x4*4 and Scania P 420 B8x4*4 side by side
SpecificationScania G 420 B8x4*4Scania P 420 B8x4*4
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration8×4Declared8×4Declared
Registered new2022–2023Registeredcentral 90% of records2022–2023Registeredcentral 90% of records
Engine power309 kWDeclared309 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
GearboxautomatedDeclaredautomated, automaticDeclared
Gross vehicle weight33,000–43,000 kgDeclaredmedian 37,000 kg, across 17 declared configurations33,000–43,000 kgDeclaredmedian 36,000 kg, across 16 declared configurations
Declared fuel, construction38.3 l/100 km Declaredmedian; 38–38.7 l/100 km across 3 declared configurations36.9 l/100 km Declaredmedian; 36.6–42.2 l/100 km across 6 declared configurations
CO₂ per tonne-km77.65 g Declaredmedian; 77.11–78.48 g74.83 g Declaredmedian; 74.22–85.63 g

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

What the numbers actually say

There is 1.4 l/100 km between these two (3.7%). 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 1,680 litres a year (£2,352). The declared figures for one of them alone span 5.6 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

G 420 B8x4*4 full specificationP 420 B8x4*4 full specification

Fuel over a year

120,000 km · assumed price
Scania G 420 B8x4*445,960 litres
£64,344 at the assumed price
Scania P 420 B8x4*444,280 litres
£61,992 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.