Comparison · 4×2 tractor unit · long haul at 19.3 t
MAN TGX 18.520 4x2, tractor unit (from 2023) vs Mercedes-Benz Actros, 380 kW, 4x2 tractor unit
MAN TGX 18.520 4x2, tractor unit (from 2023)
2023–2026 · 375–382 kW (median 382)
28.5l/100 km
median; 26.7–33.4 across 618 declared configurations
Mercedes-Benz Actros, 380 kW, 4x2 tractor unit
2020–2023 · 380 kW
30.4l/100 km
median; 28.9–40.1 across 40 declared configurations
What the numbers actually say
There is 1.9 l/100 km between these two (6.6%). 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 2,280 litres a year (£3,192). The declared figures for one of them alone span 11.2 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 TGX 18.520 4x2, tractor unit (from 2023)34,200 litres
£47,880 at the assumed price
Mercedes-Benz Actros, 380 kW, 4x2 tractor unit36,480 litres
£51,072 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.