That’s because they have huge diesel tanks down each side of the tractor unit, at a guess they will hold around 1000 litres giving them around 2400 mile range, they are instructed to fill up in the cheapest countries only, or get the sack, So there is no fuel tax paid either, the annual tax on a 44 tonne artic is either £1850 or £1350 depending on emissions in the UK, I’ve no doubt that non of the Eastern European countries pay even half of that, so how can UK companies compete, I’m sure the German hauliers are in the same boat as UK hauliers, plus the drivers will be being paid peanuts compared to ours so it’s a no win situation for them