1996 Chevrolet S10 Pickup Owner's Manual - Page 171

Snow can trap exhaust gases under yourvehicle. CO This can cause deadly (carbon monoxide) gas to get inside. CO could overcome you and kill or you. You can't see it smell it,so you might not know it is in your vehicle. Clear away snowfrom around the base your vehicle, especially any of pipe. And check that is blocking your exhaust around again from time to time to snow be sure doesn't collect there. Open awindow just a little on the of the side vehicle that's away from thewind. This will help keep CO out. Run your engine only as longas you must. This saves fuel. When you run the engine, make it go a little faster This than just idle. That is, push the accelerator slightly. it uses less fuelfor the heat that you get and keeps the battery charged. You will need a well-charged battery to restart the vehicle, and possiblyfor signaling later on with your headlamps. Let the heater for awhile. run Then, shut the engine off and close the window almost engine again all the way to preserve the heat. Start the and repeat this only when feel really uncomfortable you from the cold. But do it as little as possible. Preserve the fuel as long asyou can. To help keep warm,you can get out of the vehicle anddo some fairly vigorous exercises every half hour or so until help comes. 4-40