GM Service Manual Online
For 1990-2009 cars only

Racing or Other Competitive Driving XLR-V

See your warranty book before using your vehicle for racing or other competitive driving.

Notice: If you use your 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. Be sure to check the oil level often during racing or other competitive driving and keep the level at or near 2 quarts (2 L) above the upper mark that shows the proper operating range on the engine oil dipstick. For information on how to add oil, see Engine Oil . 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.