Cadillac CT4 2023 Owner's Manual page 186

V-Series Blackwing has a differential
cooler, so no additional cooling capacity is
necessary.
Engine Oil
Caution
If the vehicle is used for track events and
competitive driving, the engine may use
more oil than it would with normal use.
Low oil levels can damage the engine.
Check the oil level often and maintain
the proper level. See Engine Oil 0 293.
Check the oil level often during track events
and competitive driving, and keep the oil
level at or near the upper mark. See
Checking the Engine Oil" in Engine Oil
0 293.
Fuel
Use premium unleaded gasoline with a
posted octane rating of 93 at a track event.
Unleaded gasoline with a posted octane
rating of 91 may be used, but performance
will be degraded. See Prohibited Fuels 0 275.
Automatic or Manual Transmission Fluid
Have the transmission fluid set to the track
specific oil level prior to track usage.
Transmission fluid should be changed after
every 15 hours of track usage. Any
transmission level set or change should be
performed at the dealer.
Brakes
Battery Disconnect
Disconnect the battery before servicing the
hydraulic brake system. It is critical to
disconnect the battery before bleeding the
system, replacing the pads, or any other
work. The battery must be disconnected to
prevent the brake master cylinder from
pressurizing the hydraulic system during its
automated self diagnostic tests that may
occur when a door is opened or the remote
key is present.
Warning
To avoid personal injury and/or vehicle
damage, always disconnect the battery
before performing service work on the
hydraulic brake system. Bleeding the
brake system with the battery connected
Driving and Operating
Warning (Continued)
can lead to excessive pressurization of
the system during automatic diagnostic
tests or diagnosis of a leak or air in the
braking system. A Diagnostic Trouble
Code (DTC) may set and vehicle speed
may be limited.
Brake Cooling (V-Series Blackwing)
Prior to any track event, high speed driving
event, or competitive driving, complete the
following:
1. Ensure all the brake cooling parts are
correctly secured and installed.
2. Inspect and replace any deflectors that
have damage.
3. Inspect for blockage in the front brake
cooling duct prior to every event.
If improved brake cooling is desired, install
the ball joint protector front shields, remove
both upper and lower rear rotor shields, and
install the rear lower control arm cooling
deflectors, per the instructions included with
the brake cooling kit. These parts are for
track use only. After track events reinstall
(Continued)
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