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Black plate (18,1)
Chevrolet Corvette Owner Manual - 2011
10-18 Vehicle Care
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.
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
(ZO6, ZR1, and Grand Sport)
If the oil is below the cross-hatched
area at the tip of the dipstick, add
one liter/quart 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 9‑7 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 your
driving of the vehicle and seek a
service professional to remove
the excess amount of oil.