2007 CHEVROLET OPTRA 5 oil temperature

Engine Coolant Heater
Your vehicle may have an engine coolant heater.
In very cold weather, 0°F (−18°C) or colder,
the engine coolant heater can help. You will get
easier starting and better fuel economy during
engine warm-up. Usually, the coolant heater
should be plugged in a minimum of four hours
prior to starting your vehicle. At temperatures
above 32°F (0°C), use of the coolant heater is
not required.
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical
cord. The cord is located on the driver
side of the engine compartment, behind the
battery.
3. Plug it into a normal, grounded 110-volt AC
outlet.
{CAUTION:
Plugging the cord into an ungrounded
outlet could cause an electrical shock.
Also, the wrong kind of extension cord
could overheat and cause a re. You
could be seriously injured. Plug the cord
into a properly grounded three-prong
110-volt AC outlet. If the cord will not
reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug
and store the cord as it was before to keep it
away from moving engine parts. If you do
not, it could be damaged.
How long should you keep the coolant heater
plugged in? The answer depends on the outside
temperature, the kind of oil you have, and some
other things. Instead of trying to list everything here,
we ask that you contact your dealer in the area
where you will be parking your vehicle. The dealer
can give you the best advice for that particular area.
109

Hold Mode Light........................................ 170
Engine Coolant Temperature Gage............ 171
Tire Pressure Light.................................... 171
Malfunction Indicator Lamp........................ 172
Oil Pressure Light..................................... 175
Fog Lamp Light......................................... 176
Cruise Control Light.................................. 176
Highbeam On Light................................... 176
Daytime Running Lamps (DRL)
Indicator Light........................................ 176
Door Ajar Light.......................................... 177
Trunk Ajar Light (Hatchback Only)............. 177
Fuel Gage................................................. 177
Low Fuel Warning Light............................ 178Audio System(s)......................................... 178
Radio with CD (MP3/WMA)....................... 180
Radio with Six-Disc CD (MP3/WMA)......... 186
Using an MP3 (Radio with CD Player)...... 194
Using an MP3 (Radio with Six-Disc
Player)................................................... 198
Audio Steering Wheel Controls.................. 202
Radio Reception........................................ 203
Care of Your CDs..................................... 203
Care of the CD Player.............................. 204
Integrated Windshield Antenna.................. 204
Section 3 Instrument Panel
134

Notice:Use only engine oil identied as
meeting GM Standard GM6094M and showing
the American Petroleum Institute Certied
For Gasoline Engines starburst symbol.
Failure to use the recommended oil can
result in engine damage not covered by your
warranty.
GM Goodwrench
®oil meets all the requirements
for your vehicle.
If you are in an area of extreme cold, where the
temperature falls below−20°F (−29°C), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both provide
easier cold starting and better protection for
the engine at extremely low temperatures.
Engine Oil Additives
Do not add anything to the oil. The recommended
oils with the starburst symbol that meet
GM Standard GM6094M are all you need for
good performance and engine protection.
When to Change Engine Oil
If any one of these is true for you, use the
short trip/city maintenance schedule:
•Most trips are less than 5 miles (8 km).
This is particularly important when outside
temperatures are below freezing.
•Most trips include extensive idling, such as
frequent driving in stop-and-go traffic.
•You frequently tow a trailer or use a carrier
on top of your vehicle.
•The vehicle is used for delivery service,
police, taxi, or other commercial application.
Driving under these conditions causes engine oil
to break down sooner. If any one of these is
true for your vehicle, change the oil and filter every
3,000 miles (5 000 km) or 3 months, whichever
occurs first.
If none of them is true, use the long trip/highway
maintenance schedule. Change the oil and
filter every 7,500 miles (12 500 km) or 12 months,
whichever occurs first. Driving a vehicle with a
fully warmed engine under highway conditions will
cause engine oil to break down slower.
263

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, seeEngine
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 rst maintenance service after each
30,000 miles (50 000 km) or 24 months,
whichever occurs rst. 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

Selecting the Right Schedule
First you will need to decide which of the
two schedules is right for your vehicle. Here
is how to decide which schedule to follow:
Short Trip/City Denition
Follow the Short Trip/City Scheduled Maintenance
if any one of these conditions is true for your
vehicle:
•Most trips are less than 5 miles (8 km).
This is particularly important when outside
temperatures are below freezing.
•Most trips include extensive idling, such as
frequent driving in stop-and-go traffic.
•If the vehicle is used for delivery service,
police, taxi, or other commercial application.
One of the reasons you should follow this schedule
if you operate your vehicle under any of these
conditions is that these conditions cause engine oil
to break down sooner.
Short Trip/City Intervals
Every 3,000 Miles (5 000 km):Engine Oil and
Filter Change and Engine Oil Pan Drain Plug
Washer Replacement (or 3 months, whichever
occurs first).
Every 6,000 Miles (10 000 km):Tire Rotation.
Every 15,000 Miles (25 000 km):Engine Air
Cleaner Filter Inspection. Passenger Compartment
Air Filter Replacement. Drive Belt(s) Inspection.
Every 30,000 Miles (50 000 km):Engine Air
Cleaner Filter Replacement. Spark Plug
Replacement. EVAP System Service. PCV
System Service. Timing Belt Inspection.
Brake/Clutch Fluid Change (or 24 months,
whichever occurs first).
Every 60,000 Miles (100 000 km):Spark Plug
Wire Replacement. Timing Belt Replacement.
EVAP System Solenoid Valve Replacement.
359

Electrical System (cont.)
Fuses and Circuit Breakers...................... 346
Headlamp Wiring..................................... 346
Instrument Panel Fuse Block................... 347
Power Windows and Other Power
Options................................................. 346
Windshield Wiper Fuses........................... 346
Engine
Air Cleaner/Filter...................................... 264
Battery..................................................... 284
Check and Service Engine Soon Light..... 172
Coolant.................................................... 268
Coolant Heater......................................... 109
Coolant Temperature Gage...................... 171
Cooling System Inspection....................... 381
Drive Belt Routing.................................... 354
Engine Compartment Overview................ 258
Exhaust................................................... 121
Oil ........................................................... 260
Overheating............................................. 271
Starting.................................................... 107
Event Data Recorders (EDR)...................... 400
Extender, Safety Belt..................................... 37
Exterior Lamps............................................ 148F
Filter
Engine Air Cleaner................................... 264
Finish Damage............................................ 342
Flashers, Hazard Warning........................... 140
Flash-to-Pass.............................................. 143
Flat Tire...................................................... 324
Flat Tire, Changing...................................... 324
Flat Tire, Storing......................................... 333
Fluid
Automatic Transaxle................................. 266
Manual Transaxle..................................... 266
Power Steering........................................ 279
Windshield Washer.................................. 280
Fog Lamp Light........................................... 176
Fog Lamps.................................................. 150
Front Armrest Storage Area......................... 128
Front Storage Area...................................... 127
Fuel............................................................ 251
Additives.................................................. 252
California Fuel.......................................... 252
Filling a Portable Fuel Container.............. 256
Filling Your Tank...................................... 254
Fuels in Foreign Countries....................... 253
413