AllTruckData
Comparison · 4×2 lorry · long haul at 14 t

Volvo FH, 315 kW, 4x2 rigid lorry vs Volvo FMX, 315 kW, 4x2 rigid lorry

Lower declared fuel

Volvo FH, 315 kW, 4x2 rigid lorry

2019–2023 · 315 kW
28.8l/100 km
median; 27.9–35.1 across 44 declared configurations

Volvo FMX, 315 kW, 4x2 rigid lorry

2021–2023 · 315 kW
33.4l/100 km
median; 30.2–44.9 across 37 declared configurations
Volvo FH, 315 kW, 4x2 rigid lorry and Volvo FMX, 315 kW, 4x2 rigid lorry side by side
SpecificationVolvo FH, 315 kW, 4x2 rigid lorryVolvo FMX, 315 kW, 4x2 rigid lorry
Vehicle formLorry (BA)RegisteredLorry (BA)Registered
Axle configuration4×2Declared4×2Declared
Registered new2019–2023Registeredcentral 90% of records2021–2023Registeredcentral 90% of records
Engine power315 kWDeclared315 kWDeclared
Engine displacement12.8 litresDeclared12.8 litresDeclared
GearboxautomatedDeclaredautomated, automaticDeclared
Gross vehicle weight20,100–23,000 kgDeclaredmedian 21,000 kg, across 255 declared configurations21,000–23,000 kgDeclaredmedian 22,000 kg, across 94 declared configurations
Declared fuel, long haul28.8 l/100 km Declaredmedian; 27.9–35.1 l/100 km across 44 declared configurations33.4 l/100 km Declaredmedian; 30.2–44.9 l/100 km across 37 declared configurations
CO₂ per tonne-km53.77 g Declaredmedian; 52.16–65.5 g62.45 g Declaredmedian; 56.46–84 g

Fuel and CO₂: long haul at 14 t, 2022 declarations.

What the numbers actually say

The Volvo FH, 315 kW, 4x2 rigid lorry declared 4.6 l/100 km less (15.9%) on the long haul at 14 t, 2022 declarations. At 120,000 km a year and an assumed £1.40 a litre, that is about 5,520 litres a year, or £7,728. A gap this size is outside the 10% tolerance of declared figures.

FH, 315 kW, 4x2 rigid lorry full specificationFMX, 315 kW, 4x2 rigid lorry full specificationThe fuel ranking

Fuel over a year

120,000 km · assumed price
Volvo FH, 315 kW, 4x2 rigid lorry34,560 litres
£48,384 at the assumed price
Volvo FMX, 315 kW, 4x2 rigid lorry40,080 litres
£56,112 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.