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

Scania R 520 B6x2, lorry (2019–2021) vs Scania S 520 A6x2/2, lorry (2019–2020)

Scania R 520 B6x2, lorry (2019–2021)

2019–2021 · 382 kW

36.2l/100 km

median; 34–37.4 across 6 declared configurations

Lower declared fuel

Scania S 520 A6x2/2, lorry (2019–2020)

2019–2020 · 382 kW

32.3l/100 km

median; 32–33.4 across 18 declared configurations

Scania R 520 B6x2, lorry (2019–2021) and Scania S 520 A6x2/2, lorry (2019–2020) side by side
Specification	Scania R 520 B6x2, lorry (2019–2021)	Scania S 520 A6x2/2, lorry (2019–2020)
Vehicle form	Lorry (BA)Registered	Lorry (BA)Registered
Axle configuration	6×2Declared	6×2Declared
Registered new	2019–2021Registeredcentral 90% of records	2019–2020Registeredcentral 90% of records
Engine power	382 kWDeclared	382 kWDeclared
Engine displacement	16.4 litresDeclared	16.4 litresDeclared
Gearbox	automated, manualDeclared	automatedDeclared
Emission class	EURO VI, EURO VI DRegistered	Not recorded
Gross vehicle weight	28,000 kgRegistered	24,300–26,500 kgDeclaredmedian 24,300 kg, across 18 declared configurations
Kerb weight	11,495 kgRegistered	Not recorded
Wheelbase	4,750–6,100 mmRegisteredmedian 4,750 mm, over 2 registrations	Not recorded
Overall length	9,640–10,100 mmRegisteredmedian 9,640 mm, over 2 registrations	Not recorded
Declared fuel, long haul	36.2 l/100 km Declaredmedian; 34–37.4 l/100 km across 6 declared configurations	32.3 l/100 km Declaredmedian; 32–33.4 l/100 km across 18 declared configurations
CO₂ per tonne-km	49 g Declaredmedian; 46.1–50.7 g	43.8 g Declaredmedian; 43.4–45.3 g

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

What the numbers actually say

The Scania S 520 A6x2/2, lorry (2019–2020) declared 3.9 l/100 km less (12%) on the long haul at 19.3 t, 2021 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 4,680 litres a year, or £6,552. A gap this size is outside the 10% tolerance of declared figures.

R 520 B6x2, lorry (2019–2021) full specification S 520 A6x2/2, lorry (2019–2020) full specification

Fuel over a year

120,000 km · assumed price

Scania R 520 B6x2, lorry (2019–2021)43,440 litres

£60,816 at the assumed price

Scania S 520 A6x2/2, lorry (2019–2020)38,760 litres

£54,264 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.