Chevrolet Corvette Owner's Manual page 157

156 Driving and Operating
proper operating range on the
engine oil dipstick. After the
competitive driving, remove excess
oil so that the level on the dipstick is
not above the upper mark that
shows the proper operating range.
Without Z51 Performance Package:
Additional oil fill above the upper
mark on the dipstick is not
recommended for track events or
other competitive driving. Check the
oil level often during racing or other
competitive driving and keep the
level at or near the upper mark that
shows the proper operating range
on the engine oil dipstick. After the
competitive driving, remove excess
oil so that the level on the dipstick is
not above the upper mark that
shows the proper operating range.
After track use, change the oil back
to 5W-30 for street use. See Engine
Oil 0 217.
Automatic Transmission Fluid
Have the gearbox fluid set to the
track specific oil level prior to track
usage. Gearbox fluid should be
changed after every 15 hours of
track usage. Any transmission level
set or change should be performed
at your retailer.
Manual Gearbox Fluid
Manual gearbox fluid should be
changed after every 15 hours of
track usage.
Brake Fluid
Replace existing brake fluid with a
qualified high performance brake
fluid from a sealed container. Brake
fluid with a dry boiling point >279 °C
(534 °F) is qualified. If high
performance brake fluid is used,
replace it with GM approved brake
fluid before driving on public roads.
If high performance brake fluid is in
the vehicle and the age of the brake
fluid is over a month old or
unknown, replace the brake fluid
before track events and competitive
driving. Do not use silicone or
DOT-5 brake fluids.
Load Limit
Z51 Performance Package Only:
Limit vehicle load to the driver only,
with no other cargo. Inflate tires to
180 kPa (26 psi) and drive at a
maximum speed of 280 km/h
(174 mph).
Grand Sport and Z06 Only: Limit
vehicle load to the driver only, with
no other cargo. Inflate tires to
180 kPa (26 psi) and drive at a
maximum speed of 296 km/h
(184 mph).
Wheel Alignment
Caution
Using these wheel alignment
settings may cause excessive
tyre wear. Only use these wheel
alignment settings for racing or
competitive driving. Excessive
tyre wear is not covered under
the vehicle warranty.
If the vehicle is equipped with the
Z51 package, is a Z06, or is a
Grand Sport, the racing and
competitive driving wheel alignment
settings should be set as described
here. Alignment should be
performed by first removing washers