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 five 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
Overheating on page 271
.
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 lights and gages work as
they should.
Notice:
Using coolant other than DEX-COOL
®
may cause premature engine, heater core,
or radiator corrosion. In addition, the engine
coolant may require changing sooner, at
the first maintenance service after each
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.
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.
268
Summary of Contents for 2007 Optra
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 20: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 20 ...
Page 132: ... NOTES 132 ...
Page 135: ... NOTES 135 ...
Page 136: ...Instrument Panel Overview 136 ...
Page 138: ...138 ...
Page 244: ... NOTES 244 ...
Page 354: ...Engine Drive Belt Routing 2 0L L4 Engine 354 ...
Page 385: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 385 ...
Page 386: ...Maintenance Record cont d Date Odometer Reading Serviced By Maintenance Record 386 ...
Page 408: ... NOTES 408 ...