Comparison · 6×4 tractor unit · long haul at 19.3 t
MAN TGX 26.640 6x4, tractor unit (2020–2023) vs MAN TGX 33.640 6x4, tractor unit (2020–2023)
MAN TGX 26.640 6x4, tractor unit (2020–2023)
2020–2023 · 471 kW
35.5l/100 km
median; 35.5–38.7 across 4 declared configurations
MAN TGX 33.640 6x4, tractor unit (2020–2023)
2020–2023 · 471 kW
38.9l/100 km
median; 36.3–44.4 across 30 declared configurations
What the numbers actually say
There is 3.4 l/100 km between these two (9.5%). 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 4,080 litres a year (£5,712). The declared figures for one of them alone span 8.1 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 26.640 6x4, tractor unit (2020–2023)42,600 litres
£59,640 at the assumed price
MAN TGX 33.640 6x4, tractor unit (2020–2023)46,680 litres
£65,352 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.