JMC JIMMY 1993 Owner's Manual page 225

AM480041
Run your engine only as long as you must. This saves fuel. When you run
the engine, make it go a little faster than just idle. That is, push the
accelerator slightly. This uses less fuel for the heat that you get and
it
keeps
the battery charged. You will need a well-charged battery to restart the
vehicle, and possibly for signaling later on with your headlights. Let the heater
run for awhile. Then, shut the engine off and close the window almost all the
way to preserve the heat. Start the engine again and repeat this only when
you feel really uncomfortable from the cold. But do it as little as possible.
Preserve the fuel as long
as you can. To help keep warm, you can get out
of the vehicle
and do
some fairly vigorous exercises every half hour or
so
until help comes.
If You're Stuck in Deep Snow
This manual explains
how
to
get the vehicle out of deep snow without
damaging it. See "Rocking Your Vehicle"
in the Index.
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