Cadillac XT4 Owner's Manual page 253

252 VEHICLE CARE
1. Electric Engine Cooling Fan
(Out of View)
2. Coolant Surge Tank and
Pressure Cap
Warning
An underbonnet electric fan can
start up even when the engine is
not running and can cause injury.
Keep hands, clothing, and tools
away from any underbonnet
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 is filled with DEX-COOL engine
coolant mixture. This coolant needs to
be checked and changed at
appropriate levels. See Recommended
Fluids and Lubricants 0 322.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating, see
Engine Overheating 0 255.
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 aluminium parts.
Helps keep the proper engine
temperature.