There certainly are fueling stations here in Canada (and the USA too) which are designed to supply fuel (primarily diesel) only to transport and other commercial trucks. Someone with a passenger car or small, personal use truck (or Jeep) cannot normally use them.

But there are lots of alternatives available - just as there are lots of passenger cars and small trucks here that run on diesel.

And I think that "Jeep Diesel" as it is used by Early Riser refers to the new Jeep he is getting, which is a model setup for using diesel fuel.