Comparison · 4×2 tractor unit · long haul at 19.3 t
MAN TGS 18.430 4x2, tractor unit (2019–2023) vs Volvo FH, 315 kW, 4x2 tractor unit (2019–2023)
MAN TGS 18.430 4x2, tractor unit (2019–2023)
2019–2023 · 316–346 kW (median 316)
31.5l/100 km
median; 28.1–34.7 across 178 declared configurations
Volvo FH, 315 kW, 4x2 tractor unit (2019–2023)
2019–2023 · 315 kW
29.3l/100 km
median; 26.3–35.9 across 199 declared configurations
What the numbers actually say
There is 2.2 l/100 km between these two (7.5%). 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 2,640 litres a year (£3,696). The declared figures for one of them alone span 9.6 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 18.430 4x2, tractor unit (2019–2023)37,800 litres
£52,920 at the assumed price
Volvo FH, 315 kW, 4x2 tractor unit (2019–2023)35,160 litres
£49,224 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.