Comparison · 8×4 lorry · construction at 12.9 t
Volvo FH, 345 kW, 8x4 rigid lorry vs Volvo FM, 345 kW, 8x4 rigid lorry, 12.8 L (2015–2024)
Volvo FH, 345 kW, 8x4 rigid lorry
2015–2024 · 345 kW
43.3l/100 km
median; 40.2–46.8 across 30 declared configurations
Volvo FM, 345 kW, 8x4 rigid lorry, 12.8 L (2015–2024)
2015–2024 · 345 kW
42.6l/100 km
median; 39.2–46.5 across 38 declared configurations
What the numbers actually say
There is 0.7 l/100 km between these two (1.6%). 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 840 litres a year (£1,176). The declared figures for one of them alone span 7.3 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, 345 kW, 8x4 rigid lorry51,960 litres
£72,744 at the assumed price
Volvo FM, 345 kW, 8x4 rigid lorry, 12.8 L (2015–2024)51,120 litres
£71,568 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.