1993 Chevrolet Suburban Owner's Manual - Page 223

Your Driving and the Road AN480044 Runyourengineonlyaslongasyoumust.Thissaves fuel.When you run is, pushthe theengine, make it goalittlefasterthanjustidle.That it keeps acceleratorslightly.Thisuses less fuelfortheheatthatyougetand thebatterycharged. You willneedawell-charged battery to restartthe vehicle,andpossibly for signaling later on with your headlights. Let theheater runforawhile.Then, shut theengine off and close the window almost all the way to preserve theheat.Starttheengineagainandrepeatthisonly when you feel really uncomfortablefromthe cold. But do it as littleas possible. Preservethefuel as long as you can. To help keepwarm,youcangetout of the vehicle and do some fairly vigorous exercises every half hour or so untilhelpcomes. If You're Stuck in Deep Snow Thismanualexplainshow to getthevehicleout of deepsnowwithout damagingit.See"RockingYourVehicle" in theIndex. Towing a mailer I A If you don't use thecorrectequipmentanddriveproperly,youcan lose control when you pull atrailer.Forexample, if the trailer is too heavy, thebrakesmaynotwork well-or evenatall. You andyour if youhave passengers could beseriouslyinjured.Pullatraileronly followedallthesteps in thissection. 4-56