Engine Coolant - Pontiac 2005 Aztek Owner's Manual

Notice: Use of automatic transmission fluid labeled
®
other than DEXRON -III, Approved for the
H-Specification, may damage your vehicle, and the
damages may not be covered by your warranty.
Always use automatic transmission fluid labeled
®
DEXRON -III, Approved for the H-Specification.
3. After adding fluid, recheck the fluid level as
described under "How to Check Automatic
Transaxle Fluid," earlier in this section.
4. When the correct fluid level is obtained, push the
dipstick back in all the way.

Engine Coolant

The cooling system in your vehicle is filled with
®
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add
®
only DEX-COOL extended life coolant.
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
on page 5-26.
A 50/50 mixture of clean, drinkable water and
®
DEX-COOL coolant will:
•
Give freezing protection down to 34°F ( 37°C).
•
Give boiling protection up to 265°F (129°C).
•
Protect against rust and corrosion.
•
Help keep the proper engine temperature.
•
Let the warning messages and gages work as
they should.
Notice: Using coolant other than DEX-COOL
cause premature engine, heater core or radiator
corrosion. In addition, the engine coolant may
require changing sooner, at 30,000 miles (50 000 km)
or 24 months, whichever occurs first. Any repairs
would not be covered by your warranty. Always use
®
DEX-COOL (silicate-free) coolant in your vehicle.
®
may
5-23