Comparison · 4×2 tractor unit · long haul at 19.3 t
MAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025) vs Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)
MAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025)
2014–2025 · 324 kW
31.3l/100 km
median; 28.3–33.7 across 28 declared configurations
Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)
2019–2023 · 323 kW
30.6l/100 km
median; 27.4–37.6 across 71 declared configurations
What the numbers actually say
There is 0.7 l/100 km between these two (2.2%). 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 10.2 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 priceMAN TGS 18.440 4x2, 12.4 L, tractor unit (2014–2025)37,560 litres
£52,584 at the assumed price
Volvo FM, 323 kW, 4x2 tractor unit (2019–2023)36,720 litres
£51,408 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.