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

Scania R 580 B6x2*4 vs Scania S 580 A6x2/2, lorry (2019–2020)

Scania R 580 B6x2*4

2019–2021 · 427 kW
36.9l/100 km
median; across 1 declared configurations

Scania S 580 A6x2/2, lorry (2019–2020)

2019–2020 · 427 kW
33.6l/100 km
median; 32.2–36.4 across 31 declared configurations
Scania R 580 B6x2*4 and Scania S 580 A6x2/2, lorry (2019–2020) side by side
SpecificationScania R 580 B6x2*4Scania S 580 A6x2/2, lorry (2019–2020)
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2021Registeredcentral 90% of records2019–2020Registeredcentral 90% of records
Engine power427 kWDeclared427 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Gross vehicle weight26,500–30,000 kgDeclaredmedian 28,000 kg, across 347 declared configurations24,000–24,300 kgDeclaredmedian 24,300 kg, across 31 declared configurations
Declared fuel, long haul36.9 l/100 km Declaredmedian; across 1 declared configuration33.6 l/100 km Declaredmedian; 32.2–36.4 l/100 km across 31 declared configurations
CO₂ per tonne-km50 g Declaredmedian45.6 g Declaredmedian; 43.6–49.3 g

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

What the numbers actually say

There is 3.3 l/100 km between these two (9.8%). 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 3,960 litres a year (£5,544). The declared figures for one of them alone span 4.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

Fuel over a year

120,000 km · assumed price
Scania R 580 B6x2*444,280 litres
£61,992 at the assumed price
Scania S 580 A6x2/2, lorry (2019–2020)40,320 litres
£56,448 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.