1998 Oldsmobile Aurora Owner's Manual - Page 89

Engine Coolant Heater(If Equipped) Plugging the cord into an ungrounded outlet could cause an electrical shock. Also, the wrong kind of extension cord could overheat and cause a fire. You could be seriously injured. Plug the cord intoa properly grounded three-prong 110-volt AC outlet. If the cordwon't reach, use a heavy-duty three-prong extension cord rated for at least 15 amps. In very cold weather, 0 OF (- 18O C) or colder, the engine coolant heatercan help. You'll get easier starting and better fueleconomy during enginewarm-up. Usually, the coolant heatershould be plugged in a minimum of four hours prior to startingyour vehicle. 4. Before starting the engine, be sure to unplug and store thecord as it was before to keep it away from moving engine parts.If you don't, it could be damaged. To Use the EngineCoolant Heater 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. 3. Plug it into a normal,grounded 1 10-volt outlet. AC How long shouldyou keep the coolant heaterplugged in? The answer depends on the outside temperature, the kind of oil you have, and some other things. Instead of trying to list everything here,we ask that you contact your retailer in the area where you'll be parking your vehicle. The retailer can give you the best advice for that particular area. 2-23