What to Use
Use a mixture of one-half clean, drinkable water and
one-half DEX-COOL
®
coolant which will not damage
aluminum parts. If you use this coolant mixture,
you do not need to add anything else.
{
CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid such as alcohol, can boil before the
proper coolant mixture will. Your vehicle’s
coolant warning system is set for the proper
coolant mixture. With plain water or the wrong
mixture, your engine could get too hot but
you would not get the overheat warning.
Your engine could catch fire and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
®
coolant.
Notice: If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost would not be covered by your
warranty. Too much water in the mixture can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice: If you use the proper coolant, you do not
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
5-26
Summary of Contents for 2004 DeVille
Page 5: ...These are some examples of symbols you may find on your vehicle v...
Page 6: ...NOTES vi...
Page 126: ...NOTES 2 62...
Page 129: ...NOTES 3 3...
Page 130: ...Instrument Panel Overview 3 4...
Page 169: ...Analog Cluster United States version shown Canada similar 3 43...
Page 280: ...NOTES 4 46...
Page 292: ...Engine Compartment Overview When you open the hood you will see 5 12...
Page 388: ...NOTES 5 108...
Page 402: ...Engine Drive Belt Routing 6 14...