median; 32.5–39.8 across 20 declared configurations
Volvo FM, 278 kW, 4x2 tractor unit (2016–2019) and Volvo FM, 308 kW, 4x2 tractor unit (2016–2019) side by side
Specification
Volvo FM, 278 kW, 4x2 tractor unit (2016–2019)
Volvo FM, 308 kW, 4x2 tractor unit (2016–2019)
Vehicle form
Tractor unit (BC)Registered
Tractor unit (BC)Registered
Axle configuration
4×2Declared
4×2Declared
Registered new
2016–2019Registeredcentral 90% of records
2016–2019Registeredcentral 90% of records
Engine power
278 kWDeclared
308 kWDeclared
Engine displacement
10.8 litresDeclared
10.8 litresDeclared
Gearbox
automatedDeclared
automatedDeclared
Emission class
EURO VI B, EURO VI CRegistered
EURO 6, EURO VI B, EURO VI CRegistered
Gross vehicle weight
19,000–22,000 kgRegisteredmedian 20,500 kg, across 27 type-approval versions and 2 records without one
18,800–22,000 kgRegisteredmedian 20,500 kg, across 49 type-approval versions and 7 records without one
Kerb weight
6,854–11,075 kgRegisteredmedian 7,379 kg, over 147 registrations
6,487–7,964 kgRegisteredmedian 7,296 kg, over 181 registrations
Wheelbase
3,700–4,000 mmRegisteredmedian 3,800 mm, over 147 registrations
3,500–3,800 mmRegisteredmedian 3,800 mm, over 181 registrations
Overall length
5,890–6,210 mmRegisteredmedian 5,990 mm, over 147 registrations
5,680–6,210 mmRegisteredmedian 5,990 mm, over 181 registrations
Overall height
3,100–3,910 mmRegisteredmedian 3,880 mm, over 46 registrations
3,360–3,890 mmRegisteredmedian 3,850 mm, over 72 registrations
Declared fuel, long haul
32.9 l/100 km Declaredmedian; 32.5–36.2 l/100 km across 8 declared configurations
36.5 l/100 km Declaredmedian; 32.5–39.8 l/100 km across 20 declared configurations
CO₂ per tonne-km
44.7 g Declaredmedian; 44–49 g
49.5 g Declaredmedian; 44–53.9 g
Fuel and CO₂: long haul at 19.3 t, 2019 declarations.
What the numbers actually say
The Volvo FM, 278 kW, 4x2 tractor unit (2016–2019) declared 3.6 l/100 km less (10.9%) on the long haul at 19.3 t, 2019 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 4,320 litres a year, or £6,048. A gap this size is outside the 10% tolerance of declared figures.
