Comparison · 4×2 tractor unit · long haul at 19.3 t
MAN TGX 18.580 4x2, tractor unit (2019–2023) vs Mercedes-Benz Actros, 425 kW, 4x2 tractor unit
MAN TGX 18.580 4x2, tractor unit (2019–2023)
2019–2023 · 427 kW
31.2l/100 km
median; 29.1–37.6 across 139 declared configurations
Mercedes-Benz Actros, 425 kW, 4x2 tractor unit
2020–2023 · 425 kW
32l/100 km
median; 30.3–37.4 across 59 declared configurations
What the numbers actually say
There is 0.8 l/100 km between these two (2.5%). 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 960 litres a year (£1,344). The declared figures for one of them alone span 8.5 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 TGX 18.580 4x2, tractor unit (2019–2023)37,440 litres
£52,416 at the assumed price
Mercedes-Benz Actros, 425 kW, 4x2 tractor unit38,400 litres
£53,760 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.