1993 Pontiac Grand Prix Owner's Manual - Page 57

Engine Block Heater (OPTION) In very cold weather, 0°F (-18°C) or colder, the engine blockheater can help. You'll get easier starting and better fuel economyduring engine warm-up. To Use the Block Heater: 1. Turn off the engine. 2. Open thehood and unwrap the electrical cord. 3 Plug it intoa normal, grounded . 110-volt outlet. NOTICE After you've used block heater, the be sure to store the cord as it was before, to keep it away from . moving engineparts. If you dol it could be damaged. F=I ,~, i ~~ If you drive too quickly through deep puddles or standing water, water can come in through your engine's air intake and badly damage your engine. If you can avoid deep puddles or standin water, drðrough them ve I -~ 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 into a properlygrounded three-prong 110-volt outlet. If the cord won'treach, use a heavy-duty three-prong extension cord rated for at least 15 amps. \ How long shouldyou keep the block heater plugged in? The answer depends on theweather, the kind of oil you have, and some other things. Insteadof trying to list everything here, ask that you we contact aPontiac dealer in the area where you'll be parking your vehicle. The dealer can give you best advice the for that particular area.