If the option,
"Disable logistics for newly placed buildings & machines"
in the Vehicles Management window is enabled then trucks will not refuel at newly placed stations.
Reproduction:
Remove all stations, and let trucks run down.
Add new stations after enabling option in vehicles management.
Trucks will not refuel.
Disable option
Remove and replace stations and trucks will refuel.
Theory as to cause: Stations use same code for liquid storage that fluid storage buildings do. So they have the same option for trucks being able to export things. But because the Station window doesn't have that option, you can't see the option being disabled when the Vehicles Management option is ticked.

