2007 CHEVROLET OPTRA 5 fuel additives

Service........................................................ 248
Accessories and Modifications................... 249
California Proposition 65 Warning.............. 249
Doing Your Own Service Work.................. 250
Adding Equipment to the Outside of
Your Vehicle.......................................... 251
Fuel............................................................. 251
Gasoline Octane........................................ 251
Gasoline Specifications.............................. 251
California Fuel........................................... 252
Additives................................................... 252
Fuels in Foreign Countries........................ 253
Filling the Tank......................................... 254
Filling a Portable Fuel Container............... 256
Checking Things Under the Hood.............. 256
Hood Release........................................... 257
Engine Compartment Overview.................. 258
Engine Oil................................................. 260
Engine Air Cleaner/Filter............................ 264
Automatic Transaxle Fluid......................... 266Manual Transaxle Fluid............................. 266
Hydraulic Clutch........................................ 266
Engine Coolant.......................................... 268
Coolant Surge Tank Pressure Cap............ 271
Engine Overheating................................... 271
Cooling System......................................... 273
Power Steering Fluid ................................. 279
Windshield Washer Fluid........................... 280
Brakes...................................................... 281
Battery...................................................... 284
Jump Starting............................................ 285
Headlamp Aiming........................................ 290
Bulb Replacement....................................... 290
Halogen Bulbs........................................... 290
Headlamps................................................ 290
Front Turn Signal and Parking Lamps.......... 292
Turn Signal Lamps (Side).......................... 293
Sidemarker Lamps (Front)......................... 294
Sidemarker Lamps (Rear).......................... 295
Section 5 Service and Appearance Care
245

Adding Equipment to the Outside
of Your Vehicle
Things you might add to the outside of your
vehicle can affect the airflow around it. This may
cause wind noise and affect windshield washer
performance. Check with your dealer before
adding equipment to the outside of your vehicle.
Fuel
Use of the recommended fuel is an important part
of the proper maintenance of your vehicle.
To help keep the engine clean and maintain
optimum vehicle performance, GM recommends
the use of gasoline advertised as TOP TIER
Detergent Gasoline.
Gasoline Octane
Use regular unleaded gasoline with a posted
octane rating of 87 or higher. If the octane rating is
less than 87, you may notice an audible knocking
noise when you drive, commonly referred to as
spark knock. If this occurs, use a gasoline rated at
87 octane or higher as soon as possible. If you are
using gasoline rated at 87 octane or higher and you
hear heavy knocking, your engine needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM
specification D 4814 in the United States or
CAN/CGSB-3.5 in Canada. Some gasolines may
contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl
(MMT). General Motors recommends against the
use of gasolines containing MMT. SeeAdditives
on page 252for additional information.
251

California Fuel
If your vehicle is certified to meet California
Emissions Standards, it is designed to operate
on fuels that meet California specifications.
See the underhood emission control label. If this
fuel is not available in states adopting California
emissions standards, your vehicle will operate
satisfactorily on fuels meeting federal
specifications, but emission control system
performance may be affected. The malfunction
indicator lamp may turn on and your vehicle may
fail a smog-check test. SeeMalfunction Indicator
Lamp on page 172. If this occurs, return to
your authorized GM dealer for diagnosis. If it is
determined that the condition is caused by the type
of fuel used, repairs may not be covered by
your warranty.
Additives
To provide cleaner air, all gasolines in the United
States are now required to contain additives
that will help prevent engine and fuel system
deposits from forming, allowing your emission
control system to work properly. In most cases,
you should not have to add anything to your fuel.
However, some gasolines contain only the
minimum amount of additive required to meet
U.S. Environmental Protection Agency regulations.
To help keep fuel injectors and intake valves
clean, or if your vehicle experiences problems due
to dirty injectors or valves, look for gasoline that
is advertised as TOP TIER Detergent Gasoline.
Also, your dealer has additives that will help
correct and prevent most deposit-related problems.
Gasolines containing oxygenates, such as
ethers and ethanol, and reformulated gasolines
may be available in your area. General Motors
recommends that you use these gasolines if they
comply with the specifications described earlier.
252

A
Accessories and Modifications..................... 249
Accessory Power Outlet(s).......................... 152
Adding Equipment to Your
Airbag-Equipped Vehicle............................ 83
Additives, Fuel............................................ 252
Add-On Electrical Equipment....................... 345
Air Cleaner/Filter, Engine............................. 264
Air Conditioning........................................... 155
Airbag
Passenger Status Indicator....................... 165
Readiness Light....................................... 164
Airbag Sensing and Diagnostic
Module (SDM).......................................... 400
Airbag System............................................... 66
Adding Equipment to Your
Airbag-Equipped Vehicle......................... 83
How Does an Airbag Restrain?.................. 73
Passenger Sensing System....................... 76
Servicing Your Airbag-Equipped Vehicle....... 82
What Makes an Airbag Inflate?.................. 73
What Will You See After an
Airbag Inflates?...................................... 74
When Should an Airbag Inflate?................. 71
Where Are the Airbags?............................. 69
Antenna, Integrated Windshield................... 204Anti-Lock Brake System (ABS).................... 211
Anti-Lock Brake, System Warning Light....... 169
Appearance Care
Aluminum Wheels.................................... 341
Care of Safety Belts................................ 339
Chemical Paint Spotting........................... 343
Cleaning Exterior Lamps/Lenses.............. 340
Cleaning the Inside of Your Vehicle.......... 335
Fabric/Carpet........................................... 337
Finish Care.............................................. 340
Finish Damage......................................... 342
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 338
Leather.................................................... 338
Sheet Metal Damage............................... 342
Tires........................................................ 342
Underbody Maintenance........................... 342
Vehicle Care/Appearance Materials.......... 343
Washing Your Vehicle .............................. 339
Weatherstrips........................................... 339
Windshield and Wiper Blades................... 340
Ashtray(s).................................................... 153
Audio System(s).......................................... 178
Audio Steering Wheel Controls................. 202
Care of Your CD Player........................... 204
Care of Your CDs.................................... 203
Integrated Windshield Antenna................. 204
409

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