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by mensetmanusman 344 days ago
US semis travel 2-3x further per haul on average.
1 comments

Which means very little; european trucks are allowed to haul 10~15% more weight per axle. Being allowed to drive faster and or for longer has little to do with 'hardware' beyond different gearing and more to do with road safety and labor laws.
For the same amount of time, US semis travel further requiring more power consumption following a cubic power law.