In races where DRS zone is on the pit straight, are drivers allowed to use DRS in the pits? First of all it can be helpful at the exit, in Barcelona there’s a long run from the pit exit towards turn one. And there’s the drive through the pits – would drivers save some fuel by driving with the wing open? Surely it wouldn’t be a lot, but would they manage to save a minor amount of fuel by that?
Canada for instance – a driver is within one second at the detection zone, he opens his wing and pits, can he have the wing open all the way towards turn 2, as the pit exit goes there?