Chevrolet 1993 Astro Passenger Owner's Manual page 195

. . .
AN48001 9
What's the worst time for this? "Wet ice." Very cold snow or ice can be slick
and hard to drive on. But wet ice can be even more trouble because it may
offer the least traction of all. You can get "wet ice" when it's about freezing
(32°F; 0°C) and freezing rain begins
to
fall. Try to avoid driving on wet ice
until salt and sand crews can get there.
Whatever the condition-smooth ice, packed, blowing or loose snow-drive
with caution. Accelerate gently. Try not to break the fragile traction. If you
accelerate too fast, the drive wheels will spin and polish the surface under
the tires even more.
Your anti-lock brakes improve your ability to make a hard stop on a slippery
road. Even though you have the anti-lock braking system, you'll want to begin
stopping sooner than you would on dry pavement. See "Anti-lock" in the
Index.
Allow greater following distance on any slippery road.
Watch for slippery spots. The road might be fine until you hit a spot
that's covered with ice. On an otherwise clear road, ice patches may
appear in shaded areas where the sun can't reach: around clumps of
trees, behind buildings, or under bridges. Sometimes the surface
of
a
curve or an overpass may remain icy when the surrounding roads are
clear. If you see a patch of ice ahead of you, brake before you are on
it. Try not to brake while you're actually on the ice, and avoid sudden
steering maneuvers.
4-41