Quote:
Originally Posted by wimorrison
if there is low spray then you should have the rear fog on as the spray obscures the rear lights.
But with the Volvo having high rear lights this isn't an issue, plus the front DRLs are sufficient for you to be seen by oncoming vehicles.
Headlights are now for you to see with, the days when they were required for others to see you have passed with the introduction of DRLs - that was the idea of introducing DRLs  |
The rule is fog lights (front or rear) should be used only when visibility is less than 100m / 330 feet and switched off when visibility improves.
Generally fog lights are lower than the stop or position lamps - to mitigate dazzling other drivers at junctions etc