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

Scania R 590 A6x2/2 vs Scania S 590 A6x2/4

Scania R 590 A6x2/2

2022–2023 · 434 kW
31.5l/100 km
median; 29.5–31.5 across 3 declared configurations

Scania S 590 A6x2/4

2021–2023 · 434 kW
30.8l/100 km
median; 29.3–33.5 across 30 declared configurations
Scania R 590 A6x2/2 and Scania S 590 A6x2/4 side by side
SpecificationScania R 590 A6x2/2Scania S 590 A6x2/4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2022–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power434 kWDeclared434 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight24,000–27,000 kgDeclaredmedian 25,300 kg, across 9 declared configurations24,300–28,000 kgDeclaredmedian 27,000 kg, across 70 declared configurations
Declared fuel, long haul31.5 l/100 km Declaredmedian; 29.5–31.5 l/100 km across 3 declared configurations30.8 l/100 km Declaredmedian; 29.3–33.5 l/100 km across 30 declared configurations
CO₂ per tonne-km42.65 g Declaredmedian; 39.97–42.65 g41.74 g Declaredmedian; 39.69–45.41 g

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

What the numbers actually say

There is 0.7 l/100 km between these two (2.2%). 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 840 litres a year (£1,176). 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 590 A6x2/237,800 litres
£52,920 at the assumed price
Scania S 590 A6x2/436,960 litres
£51,744 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.