fuel additives BUICK RANDEZVOUS 2007 Owner's Manual

Service........................................................ 354
Accessories and Modications................... 354
California Proposition 65 Warning.............. 355
Doing Your Own Service Work.................. 355
Adding Equipment to the Outside of Your
Vehicle................................................... 356
Fuel............................................................. 356
Gasoline Octane........................................ 356
Gasoline Specications.............................. 356
California Fuel........................................... 357
Additives................................................... 357
Fuels in Foreign Countries........................ 358
Filling the Tank......................................... 359
Filling a Portable Fuel Container............... 361
Checking Things Under the Hood.............. 362
Hood Release........................................... 363
Engine Compartment Overview.................. 364
Engine Oil................................................. 365
Engine Oil Life System.............................. 368
Engine Air Cleaner/Filter............................ 370Automatic Transaxle Fluid......................... 372
Engine Coolant.......................................... 375
Radiator Pressure Cap.............................. 378
Engine Overheating................................... 378
Overheated Engine Protection
Operating Mode..................................... 380
Cooling System......................................... 381
Power Steering Fluid ................................. 387
Windshield Washer Fluid........................... 388
Brakes...................................................... 389
Battery...................................................... 393
Jump Starting............................................ 394
Bulb Replacement....................................... 399
Halogen Bulbs........................................... 399
Headlamps, Front Turn Signal,
Sidemarker, and Parking Lamps............. 399
Taillamps, Turn Signal, and Stoplamps...... 401
Taillamps and Back-Up Lamps.................. 402
Replacement Bulbs................................... 404
Windshield Replacement............................ 404
Section 5 Service and Appearance Care
351

Adding Equipment to the Outside of
Your Vehicle
Things you might add to the outside of your
vehicle can affect the airow 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 your 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
specication 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 357for additional information.
356

California Fuel
If your vehicle is certied to meet California
Emissions Standards, it is designed to operate on
fuels that meet California specications. 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 specications, 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 222. 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 GM dealer
has additives that will help correct and prevent
most deposit-related problems.
357

A
Accessories and Modications..................... 354
Accessory Inator........................................ 425
Accessory Power Outlet(s).......................... 199
Adding Equipment to Your Airbag-Equipped
Vehicle..................................................... 103
Additives, Fuel............................................ 357
Add-On Electrical Equipment....................... 462
Air Cleaner/Filter, Engine............................. 370
Air Conditioning.........................200, 203, 206
Airbag
Passenger Status Indicator....................... 217
Readiness Light....................................... 215
Airbag Sensing and Diagnostic
Module (SDM).......................................... 503
Airbag System............................................... 88
Adding Equipment to Your
Airbag-Equipped Vehicle....................... 103
How Does an Airbag Restrain?.................. 96
Passenger Sensing System....................... 98
Servicing Your Airbag-Equipped Vehicle.... 102
What Makes an Airbag Inate?.................. 95
What Will You See After an Airbag
Inates?................................................. 96
When Should an Airbag Inate?................. 93
Where Are the Airbags?............................. 91Airbag System (cont.)
Antenna, Fixed Mast................................... 299
Antenna, XM™ Satellite Radio Antenna
System.................................................... 299
Anti-Lock Brake System (ABS).................... 307
Anti-Lock Brake, System Warning Light....... 220
Appearance Care
Aluminum or Chrome-Plated Wheels........ 457
Care of Safety Belts................................ 455
Chemical Paint Spotting........................... 459
Cleaning Exterior Lamps/Lenses.............. 456
Cleaning the Inside of Your Vehicle.......... 451
Fabric/Carpet........................................... 453
Finish Care.............................................. 456
Finish Damage......................................... 459
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 454
Leather.................................................... 454
Sheet Metal Damage............................... 458
Tires........................................................ 458
Underbody Maintenance........................... 459
Vehicle Care/Appearance Materials.......... 460
Washing Your Vehicle .............................. 455
Weatherstrips........................................... 455
Windshield, Backglass, and
Wiper Blades........................................ 457
513

F
Filter
Engine Air Cleaner................................... 370
Finish Damage............................................ 459
Fixed Mast Antenna.................................... 299
Flashers, Hazard Warning........................... 176
Flash-to-Pass.............................................. 179
Flat Tire...................................................... 427
Flat Tire, Changing...................................... 428
Flat Tire, Storing......................................... 444
Fluid
Automatic Transaxle................................. 372
Power Steering........................................ 387
Windshield Washer.................................. 388
Fog Lamps.................................................. 187
Front Armrest Storage Area......................... 160
Front Console Storage Area........................ 160
Front Reading Lamps.................................. 191
Fuel............................................................ 356
Additives.................................................. 357
California Fuel.......................................... 357
Filling a Portable Fuel Container.............. 361
Filling Your Tank...................................... 359
Fuels in Foreign Countries....................... 358Fuel (cont.)
Gage....................................................... 225
Gasoline Octane...................................... 356
Gasoline Specications............................ 356
Low Warning Message............................. 232
Fuses
Floor Console Fuse Block........................ 463
Fuses and Circuit Breakers...................... 463
Underhood Fuse Block............................. 466
Windshield Wiper..................................... 462
G
Gage
Engine Coolant Temperature.................... 221
Fuel......................................................... 225
Speedometer........................................... 213
Tachometer.............................................. 214
Garage Door Opener..........................147, 148
Gas, Check Cap Message........................... 231
Gasoline
Octane..................................................... 356
Specications........................................... 356
Glove Box................................................... 158
GM Mobility Reimbursement Program.......... 497
518