07-03-2013, 09:57 AM
Wouldn't it just smear WD40 all over the windscreen and make a right old mess?
Surely the idea of the wiper is there is some friction there so the wiper acts like a sqeegee to move the water off the glass.
If there was little friction wouldn't the water sort of stay in places, lots of little tiny droplets everywhere?
Surely the idea of the wiper is there is some friction there so the wiper acts like a sqeegee to move the water off the glass.
If there was little friction wouldn't the water sort of stay in places, lots of little tiny droplets everywhere?