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

Scania R 520 A6x2/2 vs Scania S 520 A6x2/4

Scania R 520 A6x2/2

2019–2020 · 382 kW
32.5l/100 km
median; 32.2–33 across 6 declared configurations

Scania S 520 A6x2/4

2019–2021 · 382 kW
32l/100 km
median; 31.1–32.4 across 6 declared configurations
Scania R 520 A6x2/2 and Scania S 520 A6x2/4 side by side
SpecificationScania R 520 A6x2/2Scania S 520 A6x2/4
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2019–2020Registeredcentral 90% of records2019–2021Registeredcentral 90% of records
Engine power382 kWDeclared382 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight24,300–27,000 kgDeclaredmedian 26,000 kg, across 12 declared configurations24,300–29,000 kgDeclaredmedian 27,000 kg, across 82 declared configurations
Declared fuel, long haul32.5 l/100 km Declaredmedian; 32.2–33 l/100 km across 6 declared configurations32 l/100 km Declaredmedian; 31.1–32.4 l/100 km across 6 declared configurations
CO₂ per tonne-km44 g Declaredmedian; 43.7–44.8 g43.3 g Declaredmedian; 42.2–44 g

Fuel and CO₂: long haul at 19.3 t, 2020 declarations.

What the numbers actually say

There is 0.5 l/100 km between these two (1.5%). 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 600 litres a year (£840). The declared figures for one of them alone span 1.3 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 520 A6x2/239,000 litres
£54,600 at the assumed price
Scania S 520 A6x2/438,400 litres
£53,760 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.