Racing or competitive driving may affect the vehicle warranty. See the warranty book before using the vehicle for racing or other competitive driving.
Notice: If you use the vehicle for racing or other competitive driving, the engine may use more oil than it would with normal use. Low oil levels can damage the engine. For information on how to add oil, see Engine Oil.
Z06 and ZR1 Only: Be sure to check the oil level often during racing or other competitive driving and keep the level at or near the upper mark that shows the proper operating range on the engine oil dipstick. Except Z06 and ZR1: 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. 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.Z06 and ZR1 Only: For racing or competitive driving, it is recommended that the brake fluid be replaced with a high performance brake fluid that has a dry boiling point greater than 534°F (279°C). After conversion to the high performance brake fluid, follow the brake fluid service recommendations outlined by the fluid manufacturer. Do not use silicone or DOT-5 brake fluids.
If the vehicle is a ZO6 or ZR1 model or has the Z51 performance package, it has greaseable outer ends on both of the rear toe-links. Under normal use, lubrication should be performed as described in the maintenance schedule. See Scheduled Maintenance and Recommended Fluids and Lubricants. If using the vehicle for racing, lubrication should be performed at the end of each racing day. See your dealer/retailer for lubrication and make sure any needed repairs are made at once. Proper procedures for performing these services can be found in the service manual. See Service Publications Ordering Information.
If the vehicle is used for racing or other competitive driving, the rear axle fluid temperatures may be higher than would occur in normal driving. We recommend that the rear axle fluid be drained and refilled with new fluid after every 24 hours of racing or competitive driving. See Recommended Fluids and Lubricants for what fluid to use.
