2008 Chevrolet Corvette Owner's Manual - Page 295

Changing Engine Oil and Filter (Z06 Only) Z06 models 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. 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. 2. Once the oil has been drained from the engine, remove the engine oil filter and allow the oil to drain. 3. Re-install both drain plugs and tighten them to 18 lb ft (25 Y). 4. Replace the oil filter and tighten it to 18 lb ft (25 Y). See Maintenance Replacement Parts on page 6-13 for the correct filter. 5. Oil is filled through the opening in the top of the external engine oil tank. Remove the oil fill cap. 6. Add eight quarts (7.6 L) of oil to the oil tank. See Capacities and Specifications on page 5-103. 7. Install the oil fill cap and insert the dipstick, if removed. 8. Start the engine and let it run at idle for at least 15 seconds. This will circulate the fresh engine oil through the lubrication system. 9. Shut off the engine and check the oil level as described under "Checking Engine Oil (Z06 Only)." A. Engine Oil Drain Plugs B. Seals 5-21