Yes, absolutely. The Transporter is blessed with the drag factor of a brick wall, but also winter brings lights, heaters, etc which also puts extra load on the alternator, which in turn puts load on the engine.
As a quick aside- why are so many of the new EV's so badly designed in terms of drag? The best is probably the Tesla model 3, which just happens to have the best range.
As a quick aside- why are so many of the new EV's so badly designed in terms of drag? The best is probably the Tesla model 3, which just happens to have the best range.