Comparison · 6×2 tractor unit · long haul at 19.3 t
DAF XF 450 FTP, tractor unit (2017–2023) vs DAF XG 450 FTP
DAF XF 450 FTP, tractor unit (2017–2023)
2017–2023 · 330 kW
29.2l/100 km
median; 28–34.8 across 35 declared configurations
What the numbers actually say
There is 1.3 l/100 km between these two (4.6%). 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 1,560 litres a year (£2,184). The declared figures for one of them alone span 6.8 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 FTP, tractor unit (2017–2023)35,040 litres
£49,056 at the assumed price
DAF XG 450 FTP33,480 litres
£46,872 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.