median; 26.3–35.9 across 199 declared configurations
DAF XF 430 FT (2022–2025) and Volvo FH, 315 kW, 4x2 tractor unit (2019–2023) side by side
Specification
DAF XF 430 FT (2022–2025)
Volvo FH, 315 kW, 4x2 tractor unit (2019–2023)
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2022–2025Registeredcentral 90% of records
2019–2023Registeredcentral 90% of records
Engine power
315 kWDeclared
315 kWDeclared
Engine displacement
12.9 litresDeclared
12.8 litresDeclared
Gearbox
automatedDeclared
automatedDeclared
Emission class
EURO VI ERegistered
EURO 6, EURO VI, EURO VI D, EURO VI ERegistered
Gross vehicle weight
19,000–20,500 kgRegisteredmedian 20,500 kg, across 17 type-approval versions and 1 record without one
18,200–22,000 kgRegisteredmedian 21,000 kg, across 64 type-approval versions and 21 records without one
Kerb weight
7,129–8,383 kgRegisteredmedian 7,612 kg, over 196 registrations
6,956–8,666 kgRegisteredmedian 7,899 kg, over 479 registrations
Wheelbase
3,600–3,800 mmRegisteredmedian 3,800 mm, over 196 registrations
3,600–4,000 mmRegisteredmedian 3,800 mm, over 479 registrations
Overall length
5,880–6,320 mmRegisteredmedian 6,080 mm, over 196 registrations
5,790–6,360 mmRegisteredmedian 5,990 mm, over 479 registrations
Overall height
3,690–3,850 mmRegisteredmedian 3,690 mm, over 61 registrations
3,460–4,000 mmRegisteredmedian 3,770 mm, over 269 registrations
Declared fuel, long haul
26.4 l/100 km Declaredmedian; 25.9–34.4 l/100 km across 132 declared configurations
29.3 l/100 km Declaredmedian; 26.3–35.9 l/100 km across 199 declared configurations
CO₂ per tonne-km
35.75 g Declaredmedian; 35.16–46.7 g
39.76 g Declaredmedian; 35.67–48.7 g
Fuel and CO₂: long haul at 19.3 t, 2022 declarations.
What the numbers actually say
The DAF XF 430 FT (2022–2025) declared 2.9 l/100 km less (10.9%) on the long haul at 19.3 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 3,480 litres a year, or £4,872. A gap this size is outside the 10% tolerance of declared figures.
