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

Scania S 660 A6x2, tractor unit (2021–2023) vs Volvo FH, 478 kW, 6x2 tractor unit

Scania S 660 A6x2, tractor unit (2021–2023)

2021–2023 · 485 kW
31.4l/100 km
median; 28.8–32.6 across 97 declared configurations

Volvo FH, 478 kW, 6x2 tractor unit

2019–2023 · 478 kW
33.7l/100 km
median; 32.3–38.7 across 20 declared configurations
Scania S 660 A6x2, tractor unit (2021–2023) and Volvo FH, 478 kW, 6x2 tractor unit side by side
SpecificationScania S 660 A6x2, tractor unit (2021–2023)Volvo FH, 478 kW, 6x2 tractor unit
Vehicle formTractor unit for semi-trailer (BC)RegisteredTractor unit for semi-trailer (BC)Registered
Axle configuration6×2Declared6×2Declared
Registered new2021–2023Registeredcentral 90% of records2019–2023Registeredcentral 90% of records
Engine power485 kWDeclared478 kWDeclared
Engine displacement16.4 litresDeclared16.1 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight26,500–31,000 kgDeclaredmedian 27,000 kg, across 484 declared configurations24,000–31,500 kgDeclaredmedian 28,000 kg, across 63 declared configurations
Declared fuel, long haul31.4 l/100 km Declaredmedian; 28.8–32.6 l/100 km across 97 declared configurations33.7 l/100 km Declaredmedian; 32.3–38.7 l/100 km across 20 declared configurations
CO₂ per tonne-km42.5 g Declaredmedian; 39.01–44.2 g45.68 g Declaredmedian; 43.75–52.43 g

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

What the numbers actually say

There is 2.3 l/100 km between these two (7.3%). 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 2,760 litres a year (£3,864). The declared figures for one of them alone span 6.4 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

S 660 A6x2, tractor unit (2021–2023) full specificationFH, 478 kW, 6x2 tractor unit full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania S 660 A6x2, tractor unit (2021–2023)37,680 litres
£52,752 at the assumed price
Volvo FH, 478 kW, 6x2 tractor unit40,440 litres
£56,616 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.