2001 Chevrolet Corvette Owner's Manual - Page 88

Racing or Other Competitive Driving See your Warranty Book before using your vehicle for racing or other competitive driving. Engine Coolant Heater (Canada Only) NOTICE: If you use your vehicle for racing or other competitive driving, your engine may use more oil than it would with normal use. Low oil levels can damage the engine. Be sure to check the oil level often during racing or other competitive driving and keep the level at or near 1 quart (1 L) above the upper mark that shows the proper operating range on the engine oil dipstick. For information on how to add oil, see "Adding Oil" under "Engine" in the Index. After the competitive driving, remove excess oil so that the level on the dipstick is not above the upper mark that shows the proper operating range. The engine coolant heater is located on the driver's side of the engine under the manifold. In very cold weather, 0_F (-18_C) or colder, the engine coolant heater can help. You'll get easier starting and better fuel economy during engine warm-up. Usually, the coolant heater should be plugged in a minimum of four hours prior to starting your vehicle. 2-26