Comparison · 8×4 lorry · construction at 12.9 t
Volvo FH, 413 kW, 8x4 rigid lorry vs Volvo FMX, 405 kW, 8x4 rigid lorry (2021–2023)
Volvo FH, 413 kW, 8x4 rigid lorry
2020–2023 · 413 kW
46.4l/100 km
median; 45.5–49.8 across 16 declared configurations
Volvo FMX, 405 kW, 8x4 rigid lorry (2021–2023)
2021–2023 · 405 kW
43.8l/100 km
median; 40.6–48.6 across 30 declared configurations
What the numbers actually say
There is 2.6 l/100 km between these two (5.9%). 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 3,120 litres a year (£4,368). The declared figures for one of them alone span 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 priceVolvo FH, 413 kW, 8x4 rigid lorry55,680 litres
£77,952 at the assumed price
Volvo FMX, 405 kW, 8x4 rigid lorry (2021–2023)52,560 litres
£73,584 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.