Buick 1993 Roadmaster Owner's Manual page 183

Tips on Driving in Fog
If you get caught in fog, turn your headlights on low
beam, even in daytime. You'll see
-
and be seen -
better.
Pass other vehicles in fog only if you can see far enough
ahead to pass safely. Even then, be prepared to delay
your pass if you suspect the fog.is worse up ahead. If
other vehicles try to pass you, make it easy for them.
*
If visibility is near zero and you must stop but are
unsuTe whether you are away from the road, turn your
lights on, start your hazard warning flasher, and sound
your Born at intervals or when you hear approaching
traffic.
One of the biggest problems with city streets is the
amount of traffic on them. You'll want to watch out for
what the other drivers are doing and pay attention to
traffic signals.
181