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

Scania R 660 B6x2 vs Scania S 770 B6x2

Scania R 660 B6x2

2021–2023 · 485 kW
35.1l/100 km
median; 31.3–37.5 across 40 declared configurations

Scania S 770 B6x2

2021–2023 · 566 kW
36l/100 km
median; 34.2–39.1 across 12 declared configurations
Scania R 660 B6x2 and Scania S 770 B6x2 side by side
SpecificationScania R 660 B6x2Scania S 770 B6x2
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×2Declared6×2Declared
Registered new2021–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power485 kWDeclared566 kWDeclared
Engine displacement16.4 litresDeclared16.4 litresDeclared
GearboxautomatedDeclaredautomatedDeclared
Gross vehicle weight28,000–31,000 kgDeclaredmedian 28,000 kg, across 103 declared configurations27,000–31,000 kgDeclaredmedian 30,000 kg, across 33 declared configurations
Declared fuel, long haul35.1 l/100 km Declaredmedian; 31.3–37.5 l/100 km across 40 declared configurations36 l/100 km Declaredmedian; 34.2–39.1 l/100 km across 12 declared configurations
CO₂ per tonne-km47.59 g Declaredmedian; 42.45–50.8 g48.78 g Declaredmedian; 46.3–53 g

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

What the numbers actually say

There is 0.9 l/100 km between these two (2.5%). 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 1,080 litres a year (£1,512). The declared figures for one of them alone span 6.2 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

R 660 B6x2 full specificationS 770 B6x2 full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Scania R 660 B6x242,120 litres
£58,968 at the assumed price
Scania S 770 B6x243,200 litres
£60,480 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.