Oldsmobile 1999 Alero - Manual (Page 242)

yellow blue
6-18
NOTICE:
We recommend you use only fluid labeled
DEXRON
R
- III, because fluid with that label is
made especially for your automatic transaxle.
Damage caused by fluid other than
DEXRON
R
- III is not covered by your new
vehicle warranty.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an ACDelco
R
thermostat is recommended.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
- COOL
R
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
R
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” in
the Index.
A 50/50 mixture of clean, drinkable water and
DEX
- COOL
R
coolant will:
D Give freezing protection down to - 34
_F ( - 37
_C).
D Give boiling protection up to 265_F (129_C).
D Protect against rust and corrosion.
D Help keep the proper engine temperature.
D Let the warning lights and gages work as
they should.