Ford Mustang Shelby GT350 2019 Manual Supplement page 34

WARNING: Do not add coolant
further than the MAX mark.
Note: Do not use stop leak pellets, cooling
system sealants, or additives as they can
cause damage to the engine cooling or
heating systems. This damage would not
be covered under your vehicle s warranty.
Note: During normal vehicle operation, the
engine coolant may change color from
orange to pink or light red. As long as the
engine coolant is clear and uncontaminated,
this color change does not indicate the
engine coolant has degraded nor does it
require the engine coolant to be drained, the
system to be flushed, or the engine coolant
to be replaced.
• DO NOT MIX different colors or types
of coolant in your vehicle. Make sure
the correct coolant is used. Mixing of
engine coolants may harm your
engine s cooling system. The use of an
improper coolant may harm engine and
cooling system components and may
void the warranty.
• In case of emergency, a large amount
of water without engine coolant may
be added in order to reach a vehicle
service location. In this instance, the
cooling system must be drained,
chemically cleaned with Motorcraft®
Premium Cooling System Flush, and
refilled with prediluted coolant as soon
as possible. Water alone without
engine coolant can cause engine
damage from corrosion, overheating
or freezing.
Note: Do not use alcohol, methanol or brine
or any engine coolants mixed with alcohol
or methanol antifreeze coolant. Alcohol and
other liquids can cause engine damage from
overheating or freezing.
Mustang (CZG) GT350, United States of America, Vehicles With: SVT Performance Package, enUSA, First-Printing
Maintenance
Note: Do not add extra inhibitors or
additives to the coolant. These can be
harmful and compromise the corrosion
protection of the engine coolant.
Unscrew the cap slowly. Any pressure
could escape as you unscrew the cap.
Add prediluted engine coolant meeting our
specification. See the Capacities and
Specifications chapter of the Owner's
Manual for more information. Whenever
coolant has been added, the coolant level
in the coolant reservoir should be checked
the next few times you drive the vehicle. If
necessary, add enough prediluted coolant
to bring the coolant level to the proper
level.
Coolant Refill Procedure
The following procedure should be used
when refilling the cooling system after it
has been drained or become extremely
low.
1. Remove the pressure relief cap from
the coolant reservoir as previously
outlined.
2. Slowly add prediluted coolant to the
coolant reservoir until the coolant level
is between the MIN and MAX marks
on the reservoir.
3. Reinstall the pressure relief cap.
4. Start and idle the engine until the upper
radiator hose is warm, which indicates
the thermostat is open and coolant is
flowing through the entire system.
5. Shut the engine off and let it cool.
6. Remove the pressure relief cap from
the coolant reservoir as previously
outlined.
7. Add prediluted coolant to the coolant
reservoir until the coolant level is
between the MIN and MAX marks on
the reservoir.
8. Reinstall the pressure relief cap.
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