Comparison · 6×2 tractor unit · long haul at 19.3 t
DAF XF 450 FTG, tractor unit (2018–2023) vs Volvo FH, 315 kW, 6x2 tractor unit (from 2019)
DAF XF 450 FTG, tractor unit (2018–2023)
2018–2023 · 330 kW
28.4l/100 km
median; 28–30.7 across 14 declared configurations
Volvo FH, 315 kW, 6x2 tractor unit (from 2019)
2019–2026 · 315 kW
28.3l/100 km
median; 27.4–35.2 across 6 declared configurations
What the numbers actually say
There is 0.1 l/100 km between these two (0.3%). 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 120 litres a year (£168). The declared figures for one of them alone span 7.8 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 priceDAF XF 450 FTG, tractor unit (2018–2023)34,080 litres
£47,712 at the assumed price
Volvo FH, 315 kW, 6x2 tractor unit (from 2019)33,960 litres
£47,544 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.