1994 Chevrolet Camaro Owner's Manual - Page 61

How long should you keep the coolant heater plugged in? The answer depends on the weather, the kind of oil you have, and some other things. Instead of trying to list everything here, we ask that you contact a Chevrolet dealer in the area where you'll be parking your vehicle. The dealer can give you the best advice for that particular area. Engine Coolant Heater (Engine Block Heater) (OPTION) In very cold weather, 0°F (- 1 8 "Cj or colder, the engine coolant heater can help. You'll get easier startingand better fuel economy during enginewarm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. To use the coolant heater: 1. Turn off the engine. 2. Open the hood and unwrap the electrical cord. 3. Plug it into a normal, grounded 110-volt outlet. NOTICE: After you've used the coolant heater, be sure to store the cord as it was before, to keep it away from moving engine parts. If you don't, it could be damaged. 59. .