Engine Coolant - GMC 1993 Safari Owner's Manual

Senrice
& Appearance Care
Engine Coolant
I .
E
PO453
The following explains your cooling system and how to add coolant when it is
low. If you have a problem with engine overheating, see "Engine
Overheating" in the Index.
The proper coolant for your vehicle will:
Give freezing protection down to -20°F (-29°C) or -40°F (-40°C) for
Canadian vehicles and vehicles with the cold climate option.
Give boiling protection up to 258°F (125°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning gages work as they should.
What to Use:
Use a mixture of clean water (preferably distilled) and antifreeze that meets
"GM Specification 6038-M," which won't damage aluminum parts. Also use
GM Engine Coolant Supplement (sealer) with a complete coolant change.
If
you use these, you don't need to add anything else.
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