[ronwest]

Originally Posted by b0son

possibly, but not because of their mileage, but because of their use of stimulants.

https://link.springer.com/article/10...213-014-3834-5

Caffeine....?

Real truck drivers didn't need caffeine.
Pseudoephedrine (speed) was plenty good enough
(and before we get drawn into some long, drawn out "illegal" diversion, I might add it was legal to buy over the counter until around 1978 - in Qld at least. Dosage was another story, lol)