2012 Chevrolet Corvette Owner's Manual - Page 293

Vehicle Care See "Selecting the Right Engine Oil" for an explanation of what kind of oil to use. For engine oil crankcase capacity, see Capacities and Specifications on page 12‑2. See Racing or Other Competitive Driving on page 9‑6 for additional information on engine oil. Notice: Do not add too much oil. Oil levels above or below the acceptable operating range shown on the dipstick are harmful to the engine. If you find that you have an oil level above the operating range, i.e., the engine has so much oil that the oil level gets above the cross-hatched area that shows the proper operating range, the engine could be damaged. You should drain out the excess oil or limit driving of the vehicle and seek a service professional to remove the excess amount of oil. See Engine Compartment Overview on page 10‑8 for the location of the external engine oil tank and fill cap. Add enough oil to put the level somewhere in the proper operating range. Push the dipstick all the way back into the oil tank when through. 10-17 Changing Engine Oil and Filter (Z06, ZR1, and Grand Sport) These vehicles have a racetrack‐ ready dry sump engine lubrication system. This high‐performance system operates differently than a standard engine lubrication system and requires a special procedure when changing the engine oil and filter. Follow this procedure closely when changing the engine oil and filter. Z06 Shown, ZR1 and Grand Sport Similar A. Engine Oil Drain Plugs B. Seals 1. Remove the two engine oil drain plugs from the bottom of the engine oil pan. One drain plug drains the external oil tank via the oil transfer supply line. The other drain plug drains residual oil from the crankcase sump. Allow the oil to drain.