2013 Chevrolet Corvette Owner Manual - Page 278

10-18 Vehicle Care 9. Shut off the engine and check the oil level as described under "Checking Engine Oil (Z06, ZR1, and Grand Sport)." 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 25 Y (18 lb ft). 4. Replace the oil filter and tighten it to 30 Y (22 lb ft). See Maintenance Replacement Parts on page 11‑14 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 9.9 L (10.5 quarts) of oil to the oil tank. See Capacities and Specifications on page 12‑2. 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. Selecting the Right Engine Oil Selecting the right engine oil depends on both the proper oil specification and viscosity grade. See Recommended Fluids and Lubricants on page 11‑12. Specification Use and ask for licensed engine oils with the dexos1® approved certification mark. Engine oils meeting the requirements for the vehicle should have the dexos1 approved certification mark. This certification mark indicates that the oil has been approved to the dexos1 specification. Corvette recommends Mobil 1® engine oils that meet the requirements of the dexos1 specification for its dry-sump equipped engines. Notice: Failure to use the recommended engine oil or equivalent can result in engine damage not covered by the vehicle warranty. Check with your dealer or service provider on whether the oil is approved to the dexos1 specification. Viscosity Grade SAE 5W-30 is the best viscosity grade for the vehicle. Do not use other viscosity grade oils such as SAE 10W-30, 10W-40, or 20W-50. Cold Temperature Operation: In an area of extreme cold, where the temperature falls below −29°C (−20°F), an SAE 0W-30 oil may be used. An oil of this viscosity grade will provide easier cold starting for the engine at extremely low temperatures. When selecting an oil