AllTruckData
Comparison · 6×2 tractor unit · long haul at 19.3 t

Scania R 580 A6x2/4 vs Scania S 650 A6x2/2, tractor unit (2019–2022)

Scania R 580 A6x2/4

2019–2021 · 427 kW
33.6l/100 km
median; 31.4–40.9 across 15 declared configurations

Scania S 650 A6x2/2, tractor unit (2019–2022)

2019–2022 · 478 kW
32.4l/100 km
median; 32.3–33.8 across 10 declared configurations
Scania R 580 A6x2/4 and Scania S 650 A6x2/2, tractor unit (2019–2022) side by side
SpecificationScania R 580 A6x2/4Scania S 650 A6x2/2, tractor unit (2019–2022)
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2021Registeredcentral 90% of records2019–2022Registeredcentral 90% of records
Engine power427 kWDeclared478 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
Gearboxautomated, manualDeclaredautomatedDeclared
Emission classEURO VIRegisteredNot recorded
Gross vehicle weight27,000 kgRegistered24,000–28,000 kgDeclaredmedian 24,300 kg, across 72 declared configurations
Kerb weight10,000 kgRegisteredNot recorded
Wheelbase4,110 mmRegisteredNot recorded
Overall length5,350 mmRegisteredNot recorded
Declared fuel, long haul33.6 l/100 km Declaredmedian; 31.4–40.9 l/100 km across 15 declared configurations32.4 l/100 km Declaredmedian; 32.3–33.8 l/100 km across 10 declared configurations
CO₂ per tonne-km45.5 g Declaredmedian; 42.6–55.4 g43.9 g Declaredmedian; 43.8–45.8 g

Fuel and CO₂: long haul at 19.3 t, 2021 declarations.

What the numbers actually say

There is 1.2 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 1,440 litres a year (£2,016). The declared figures for one of them alone span 9.5 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 580 A6x2/4 full specificationS 650 A6x2/2, tractor unit (2019–2022) full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 580 A6x2/440,320 litres
£56,448 at the assumed price
Scania S 650 A6x2/2, tractor unit (2019–2022)38,880 litres
£54,432 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.