Chevrolet 2012 Corvette Manuel d'utilisateur télécharger pdf (Page 292)

Black plate (16,1)

Chevrolet Corvette Owner Manual - 2012

10-16 Vehicle Care

These vehicles 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 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

(Z06, ZR1, and Grand Sport)

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.

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