AllTruckData
Comparison · 6×4 tractor unit · long haul at 19.3 t

Scania R 540 A6x4 vs Scania R 540 B6x4, tractor unit (2021–2023)

Lower declared fuel

Scania R 540 A6x4

2020–2022 · 397 kW
33.8l/100 km
median; 30.7–38.4 across 19 declared configurations

Scania R 540 B6x4, tractor unit (2021–2023)

2021–2023 · 397 kW
37.3l/100 km
median; 36.7–39.3 across 4 declared configurations
Scania R 540 A6x4 and Scania R 540 B6x4, tractor unit (2021–2023) side by side
SpecificationScania R 540 A6x4Scania R 540 B6x4, tractor unit (2021–2023)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×4Declared6×4Declared
Registered new2020–2022Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power397 kWDeclared397 kWDeclared
Engine displacement12.7 litresDeclared12.7 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Emission classEURO VI, EURO VI ERegisteredNot recorded
Gross vehicle weight28,000–29,000 kgRegisteredmedian 28,000 kg, over 2 registrations28,000–36,000 kgDeclaredmedian 30,000 kg, across 11 declared configurations
Kerb weight9,735–9,915 kgRegisteredmedian 9,735 kg, over 2 registrationsNot recorded
Wheelbase4,500–4,700 mmRegisteredmedian 4,500 mm, over 2 registrationsNot recorded
Overall length6,740–6,910 mmRegisteredmedian 6,740 mm, over 2 registrationsNot recorded
Declared fuel, long haul33.8 l/100 km Declaredmedian; 30.7–38.4 l/100 km across 19 declared configurations37.3 l/100 km Declaredmedian; 36.7–39.3 l/100 km across 4 declared configurations
CO₂ per tonne-km45.85 g Declaredmedian; 41.67–52.02 g50.53 g Declaredmedian; 49.7–53.3 g

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

What the numbers actually say

The Scania R 540 A6x4 declared 3.5 l/100 km less (10.3%) on the long haul at 19.3 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 4,200 litres a year, or £5,880. A gap this size is outside the 10% tolerance of declared figures.

R 540 A6x4 full specificationR 540 B6x4, tractor unit (2021–2023) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 540 A6x440,560 litres
£56,784 at the assumed price
Scania R 540 B6x4, tractor unit (2021–2023)44,760 litres
£62,664 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.