AllTruckData
Comparison · 6×2 lorry · long haul at 19.3 t

Volvo FM, 278 kW, 6x2 rigid lorry vs Volvo FM, 308 kW, 6x2 rigid lorry

Volvo FM, 278 kW, 6x2 rigid lorry

2013–2019 · 278 kW
37.9l/100 km
median; 35.7–42.6 across 48 declared configurations

Volvo FM, 308 kW, 6x2 rigid lorry

2019 · 308 kW
38.3l/100 km
median; 34–47.9 across 47 declared configurations
Volvo FM, 278 kW, 6x2 rigid lorry and Volvo FM, 308 kW, 6x2 rigid lorry side by side
SpecificationVolvo FM, 278 kW, 6x2 rigid lorryVolvo FM, 308 kW, 6x2 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration6×2Declared6×2Declared
Registered new2013–2019Registeredcentral 90% of records2019Registeredcentral 90% of records
Engine power278 kWDeclared308 kWDeclared
Engine displacement10.8 litresDeclared10.8 litresDeclared
Gearboxautomated, automaticDeclaredautomated, automaticDeclared
Emission classEEV K, EURO 5, EURO 6, EURO V, EURO VI, EURO VI B, EURO VI CRegisteredNot recorded
Gross vehicle weight26,000–33,000 kgRegisteredmedian 28,500 kg, across 2 type-approval versions and 103 records without one24,000–33,000 kgDeclaredmedian 28,000 kg, across 53 declared configurations
Kerb weight8,741–24,930 kgRegisteredmedian 14,217 kg, over 106 registrationsNot recorded
Wheelbase5,200–7,370 mmRegisteredmedian 6,200 mm, over 106 registrationsNot recorded
Overall length8,000–11,900 mmRegisteredmedian 9,430 mm, over 105 registrationsNot recorded
Overall height3,780–4,000 mmRegisteredmedian 3,930 mm, over 3 registrationsNot recorded
Declared fuel, long haul37.9 l/100 km Declaredmedian; 35.7–42.6 l/100 km across 48 declared configurations38.3 l/100 km Declaredmedian; 34–47.9 l/100 km across 47 declared configurations
CO₂ per tonne-km51.3 g Declaredmedian; 48.4–57.7 g51.9 g Declaredmedian; 46.1–65 g

Fuel and CO₂: long haul at 19.3 t, 2019 declarations.

What the numbers actually say

There is 0.4 l/100 km between these two (1%). 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 480 litres a year (£672). The declared figures for one of them alone span 13.9 l/100 km across its configurations, so the specification ordered matters more than the choice between these two.

FM, 278 kW, 6x2 rigid lorry full specificationFM, 308 kW, 6x2 rigid lorry full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Volvo FM, 278 kW, 6x2 rigid lorry45,480 litres
£63,672 at the assumed price
Volvo FM, 308 kW, 6x2 rigid lorry45,960 litres
£64,344 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.