Chevrolet 1995 Astro Cargo Owner's Manual page 72

How long should you keep the coolant heater plugged in? The answer
depends on the weather, the kind of oil you have, and some other things.
Instead of trying to list everything here, we ask that you contact your GM
dealer in the area where you'll be parking your vehicle. The dealer can give
you the best advice for that particular area.
Automatic Transmission
There are several
different positions for
your shift lever.
0
PARK (P)
-This locks your rear wheels. It's the best position to use
when you start your engine because your vehicle can't move easily.
A
CAUTION:
It is dangerous to get out of your vehicle if the shift lever is not
I
fully in PARK (P) with the parking brake firmly set. Your
vehicle can roll.
Don't leave your vehicle when the engine is running unless you
have to. I f you have left the engine running, the vehicle can move
suddenly. You or others could be injured. To be sure your vehicle
won't move, even when you're on fairly level ground, always set
your parking brake and
move the shift lever to PARK (P).
I
See "Shifting Into PARK (P)" in the Index. If you're pulling a
trailer,
see
"Towing a Trailer" in the Index.
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