Comparison · 6×2 road tractor · long haul at 19.3 t
Scania R 520 B6x2, road tractor (2019–2021) vs Scania R 540 B6x2, road tractor (2020–2022)
Scania R 520 B6x2, road tractor (2019–2021)
2019–2021 · 382 kW
35.7l/100 km
median; 35.6–35.9 across 4 declared configurations
Scania R 540 B6x2, road tractor (2020–2022)
2020–2022 · 397 kW
32.9l/100 km
median; 32.7–36 across 6 declared configurations
What the numbers actually say
There is 2.8 l/100 km between these two (8.5%). 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 3,360 litres a year (£4,704). The declared figures for one of them alone span 3.3 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 priceScania R 520 B6x2, road tractor (2019–2021)42,840 litres
£59,976 at the assumed price
Scania R 540 B6x2, road tractor (2020–2022)39,480 litres
£55,272 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.