2013 Chevrolet Corvette Owner Manual - Page 276

10-16 Vehicle Care tank and there could be no engine oil at all showing on the dipstick. This is normal since the dipstick is designed to read engine oil level only after the engine has run long enough to reach normal operating temperature. Do not add engine oil based on cold engine dipstick readings. The engine oil level on the dipstick will also be inaccurate if checked while the engine is running. 1. To obtain an accurate engine oil level reading, warm up the engine to at least 80°C (175°F). Cold oil will not give a correct oil level reading. 2. Once the engine is warm, turn off the engine. Checking the oil while the engine is running will result in an incorrect oil level reading. 3. Wait at least five minutes (but not more than 20 minutes) to allow oil to drain and settle in the engine. { WARNING The engine oil dipstick handle may be hot; it could burn you. Use a towel or glove to touch the dipstick handle. 4. Remove the dipstick from the external engine oil tank and clean it with a lint-free paper towel or a cloth. Re-insert the dipstick into the external oil tank, pushing it all the way in until it stops. 5. Remove the dipstick from the oil tank and read the level on the cross-hatched area. Oil levels that fall in the cross-hatched area are normal. When to Add Engine Oil (Z06, ZR1, manual transmission Grand Sport Coupe, and 427 Convertible) If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil through the oil fill cap opening in the oil tank and then recheck the level. 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