Comparison · 6×2 tractor unit · long haul at 19.3 t
Scania R 580 A6x2/4 vs Scania S 580 A6x2/2, tractor unit (2019–2021)
Scania R 580 A6x2/4
2019–2021 · 427 kW
33.6l/100 km
median; 31.4–40.9 across 15 declared configurations
Scania S 580 A6x2/2, tractor unit (2019–2021)
2019–2021 · 427 kW
33l/100 km
median; 32.2–33.2 across 5 declared configurations
What the numbers actually say
There is 0.6 l/100 km between these two (1.8%). 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 720 litres a year (£1,008). 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.
Fuel over a year
120,000 km · assumed priceScania R 580 A6x2/440,320 litres
£56,448 at the assumed price
Scania S 580 A6x2/2, tractor unit (2019–2021)39,600 litres
£55,440 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.