Cadillac XT6 2023 Owner's Manual page 378

3.6L V6 Engine
1. Electric Engine Cooling
Fan (Out of View)
2. Coolant Surge Tank and
Pressure Cap
Warning
An underhood electric fan
can start up even when the
engine is not running and
can cause injury. Keep
hands, clothing, and tools
away from any underhood
electric fan.
Warning
Do not touch heater or
radiator hoses, or other
engine parts. They can be
very hot and can burn you.
Do not run the engine if
there is a leak; all coolant
could leak out. That could
cause an engine fire and can
burn you. Fix any leak before
driving the vehicle.
Engine Coolant
The engine cooling system in
the vehicle are filled with
DEX-COOL engine coolant
mixture. This coolant needs to
be checked and changed at
appropriate levels. See
Recommended Fluids and
Lubricants 0 458 and
Maintenance Schedule 0 454.
The following explains the
cooling systems and how to
check and add coolant when it
is low. If there is a problem
with engine overheating, see
Engine Overheating 0 381.
Vehicle Care
What to Use
Warning
Do not touch heater or
radiator hoses, or other
engine parts. They can be
very hot and can burn you.
Do not run the engine if
there is a leak; all coolant
could leak out. That could
cause an engine fire and can
burn you. Fix any leak before
driving the vehicle.
Use a 50/50 mixture of clean,
drinkable water and
DEX-COOL coolant. This
mixture:
Gives freezing protection
down to 37 °C ( 34 °F),
outside temperature.
Gives boiling protection up
to 129 °C (265 °F), engine
temperature.
Protects against rust and
corrosion.
Will not damage aluminum
parts.
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