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Checking Engine Oil (Z06 Only)
A. Engine Oil Dipstick
B. Engine Oil Fill Cap
It is a good idea to check the engine oil level every time
you get fuel. In order to get an accurate reading, the
oil must be warm and the vehicle must be on level
ground.
The engine oil dipstick handle is a yellow loop. The
dipstick is located on the dry sump engine oil tank. See
Engine Compartment Overview on page 5-14 for the
location of the dry sump engine oil tank.
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 checking
the engine oil level. Follow this procedure closely
when checking the engine oil level.
The engine oil level must be checked when the engine
is warm. Cold oil level in the dry sump tank may not
indicate the actual amount of oil in the system. With this
system, engine oil is contained in an external tank,
separate from the engine. Under normal operating
conditions, the oil pan under the engine does not store
any oil. If the vehicle has been parked for an extended
period without the engine being started, some oil
will seep back into the oil pan, reducing the amount of
oil held in the dry sump 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 175°F (80°C).
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.
5-19