Comparison · 6×2 tractor unit · long haul at 19.3 t
MAN TGX 26.580 6x2/4 vs MAN TGX 28.580 6x2-2
MAN TGX 26.580 6x2/4
2019–2023 · 427 kW
33.9l/100 km
median; 32.8–37.4 across 29 declared configurations
MAN TGX 28.580 6x2-2
2019–2020 · 427 kW
36.6l/100 km
median; 34.3–36.6 across 3 declared configurations
What the numbers actually say
There is 2.7 l/100 km between these two (7.9%). 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 3,240 litres a year (£4,536). The declared figures for one of them alone span 4.6 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 TGX 26.580 6x2/440,680 litres
£56,952 at the assumed price
MAN TGX 28.580 6x2-243,920 litres
£61,488 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.