Engine Coolant - GMC YUKON DENALI 2000 Manual

When the differential is cold, add enough lubricant to
raise the level to 1/2 inch (12 mm) below the filler
plug hole.
When the differential is at operating temperature
(warm), add enough lubricant to raise the level to the
bottom of the filler plug hole.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See "Recommended Fluids and
Lubricants" in the Index.

Engine Coolant

The cooling system in your vehicle is filled with
COOL R engine coolant. This coolant is designed
-
DEX
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
COOL R extended life coolant.
-
DEX
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.
A 50/50 mixture of clean, drinkable water and
COOL R coolant will:
-
DEX
D
Give freezing protection down to
D
Give boiling protection up to 265
D
Protect against rust and corrosion.
D
Help keep the proper engine temperature.
D
Let the warning gages work as they should.
NOTICE:
When adding coolant, it is important that you
COOL R (silicate
-
use only DEX
If coolant other than DEX
the system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the
use of coolant other than DEX
covered by your new vehicle warranty.
_ _
- -
34 F ( 37 C).
_ _
F (129 C).
-
free) coolant.
-
COOL is added to
--
at
COOL R is not
-
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