If not in a hurry, the free national roads are much slower, then a weight limit sends you back on the toll road.
Come off the toll again to save money then another weight limit on the national .
Wear and tear on the truck, more fuel used, driver fatigue and agricultural traffic and dawdling tourist traffic slow you down on the free roads .
Toll may seem expensive but less stress, more places to eat or park up for the night.
Motorway food in Europe is high quality.
UK is Burger King and KFC a not healthy option .