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

Scania R 420 B4x2 vs Volvo FH, 315 kW, 4x2 rigid lorry

Lower declared fuel

Scania R 420 B4x2

2022–2025 · 309 kW
26.1l/100 km
median; 25.4–27.6 across 19 declared configurations

Volvo FH, 315 kW, 4x2 rigid lorry

2019–2023 · 315 kW
28.8l/100 km
median; 27.9–35.1 across 44 declared configurations
Scania R 420 B4x2 and Volvo FH, 315 kW, 4x2 rigid lorry side by side
SpecificationScania R 420 B4x2Volvo FH, 315 kW, 4x2 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2022–2025Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power309 kWDeclared315 kWDeclared
Engine displacement12.7 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI ERegisteredNot recorded
Gross vehicle weight19,000–21,000 kgRegisteredmedian 20,500 kg, over 4 registrations20,100–23,000 kgDeclaredmedian 21,000 kg, across 255 declared configurations
Kerb weight9,397–10,559 kgRegisteredmedian 9,533 kg, over 4 registrationsNot recorded
Wheelbase5,350–6,350 mmRegisteredmedian 5,550 mm, over 4 registrationsNot recorded
Overall length9,350–10,980 mmRegisteredmedian 9,930 mm, over 4 registrationsNot recorded
Overall height3,950–4,000 mmRegisteredmedian 3,950 mm, over 4 registrationsNot recorded
Declared fuel, long haul26.1 l/100 km Declaredmedian; 25.4–27.6 l/100 km across 19 declared configurations28.8 l/100 km Declaredmedian; 27.9–35.1 l/100 km across 44 declared configurations
CO₂ per tonne-km48.81 g Declaredmedian; 47.46–51.53 g53.77 g Declaredmedian; 52.16–65.5 g

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

The Scania R 420 B4x2 declared 2.7 l/100 km less (10.3%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 3,240 litres a year, or £4,536. A gap this size is outside the 10% tolerance of declared figures.

R 420 B4x2 full specificationFH, 315 kW, 4x2 rigid lorry full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 420 B4x231,320 litres
£43,848 at the assumed price
Volvo FH, 315 kW, 4x2 rigid lorry34,560 litres
£48,384 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.