Buick RIVIERA 1993 Manual page 169

if the pressure in one or more is low. It can happen if a
lot of water is standing on the road. If you can see
reflections from trees, telephone poles, or other vehicles,
and raindrops "dimple" the water's surface, there could
be hydroplaning.
Hydroplaning usually happens at higher speeds. There
just isn't a hard and fast rule about hydroplaning. The
best advice is to slow down when it is raining, and be
.
careful.
Some Other .Rainy Weather Tips
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Turn on your headlights -- not just your parking
lights
--
to help make you more visible to others.
Look for hard-to-see vehicles corning from behind.
You may want to use your headlights even in
daytime if it's raining hard.
Besides slowing down, allow some extra following
distance. And be especially careful when you pass
another vehicle. Allow yourself more clear room
ahead, and be prepared to have your view restricted
by road spray. If the road spray is so heavy you are
actually blinded, drop back. Don't pass until
conditions improve. Going more slowly is better
than having an accident.
Use your defogger if it helps.
Have good tires with proper tread depth. (See
"Tires" in the Index.)
Driving in Fog, Mist and Haze
I I I I
Fog can occur with high humidity or heavy frost. It can,
be so mild that you can see through it for several
hundred feet (meters). Or it might be so thick that you
can see only a few feet (meters) ahead. It may come
suddenly to an otherwise clear road. And it can be a
major hazard.
When
you drive into a fog patch, your visibility will be
reduced quickly. The biggest dangers are striking the
vehicle ahead or being struck by the one behind. Try to
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