fuel additives CADILLAC ESCALADE EXT 2007 3.G Owners Manual

Service........................................................ 396
Accessories and Modications................... 397
California Proposition 65 Warning.............. 397
Doing Your Own Service Work.................. 398
Adding Equipment to the Outside of
Your Vehicle.......................................... 399
Fuel............................................................. 399
Gasoline Octane........................................ 399
Gasoline Specications.............................. 399
California Fuel........................................... 400
Additives................................................... 400
Fuels in Foreign Countries........................ 401
Filling the Tank......................................... 402
Filling a Portable Fuel Container............... 404
Checking Things Under the Hood.............. 404
Hood Release........................................... 405
Engine Compartment Overview.................. 406
Engine Oil................................................. 407
Engine Oil Life System.............................. 410
Engine Air Cleaner/Filter............................ 412
Automatic Transmission Fluid.................... 415
Engine Coolant.......................................... 419Coolant Surge Tank Pressure Cap............ 422
Engine Overheating................................... 422
Overheated Engine Protection
Operating Mode..................................... 425
Cooling System......................................... 426
Engine Fan Noise..................................... 431
Power Steering Fluid ................................. 431
Windshield Washer Fluid........................... 432
Brakes...................................................... 433
Battery...................................................... 437
Jump Starting............................................ 438
All-Wheel Drive........................................... 443
Rear Axle.................................................... 444
Front Axle................................................... 446
Headlamp Aiming........................................ 447
Bulb Replacement....................................... 450
High Intensity Discharge (HID) Lighting..... 450
Taillamps, Turn Signal, Sidemarker,
Stoplamps and Back-up Lamps.............. 450
License Plate Lamp................................... 452
Replacement Bulbs................................... 452
Section 5 Service and Appearance Care
393

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 premium unleaded gasoline with a posted
octane rating of 91 or higher. You may also
use regular unleaded gasoline rated at 87 octane
or higher, but your vehicle’s acceleration may
be slightly reduced, and you may notice a slight
audible knocking noise, commonly referred to
as spark knock. If the octane is less than 87, you
may notice a heavy knocking noise when you
drive. If this occurs, use a gasoline rated at
87 octane or higher as soon as possible.
Otherwise, you might damage your engine. 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 400for additional information.
399

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 236. 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.
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 specications described earlier.
However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must not be
used in vehicles that were not designed for those
fuels.
400

A
Accessories and Modications..................... 397
Accessory Power Outlet(s).......................... 217
Adding Equipment to Your Airbag-Equipped
Vehicle....................................................... 85
Additives, Fuel............................................ 400
Add-On Electrical Equipment....................... 509
Adjustable Throttle and Brake Pedal............ 128
Air Cleaner/Filter, Engine............................. 412
Air Conditioning........................................... 219
Airbag
Passenger Status Indicator....................... 230
Readiness Light....................................... 229
Airbag Sensing and Diagnostic
Module (SDM).......................................... 555
Airbag System............................................... 67
Adding Equipment to Your
Airbag-Equipped Vehicle......................... 85
How Does an Airbag Restrain?.................. 76
Passenger Sensing System....................... 78
Servicing Your Airbag-Equipped Vehicle..... 84
What Makes an Airbag Inate?.................. 75
What Will You See After an Airbag
Inates?................................................. 76
When Should an Airbag Inate?................. 73
Where Are the Airbags?............................. 70All-Wheel Drive........................................... 443
All-Wheel-Drive (AWD) System.................... 333
Analog Clock............................................... 218
Antenna, Fixed Mast................................... 318
Antenna, XM™ Satellite Radio Antenna
System.................................................... 319
Anti-Lock Brake System (ABS).................... 327
Anti-Lock Brake, System Warning Light....... 234
Appearance Care
Aluminum or Chrome-Plated Wheels........ 504
Care of Safety Belts................................ 500
Chemical Paint Spotting........................... 506
Cleaning Exterior Lamps/Lenses.............. 502
Cleaning the Inside of Your Vehicle.......... 496
Fabric/Carpet........................................... 498
Finish Care.............................................. 502
Finish Damage......................................... 505
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 499
Leather.................................................... 499
Sheet Metal Damage............................... 505
Speaker Covers....................................... 500
Tires........................................................ 505
Underbody Maintenance........................... 506
Vehicle Care/Appearance Materials.......... 507
Washing Your Vehicle .............................. 501
565

F
Filter
Engine Air Cleaner................................... 412
Finish Damage............................................ 505
Fixed Mast Antenna.................................... 318
Flashers, Hazard Warning........................... 194
Flash-to-Pass.............................................. 198
Flat Tire...................................................... 476
Flat Tire, Changing...................................... 477
Flat Tire, Storing......................................... 492
Fluid
Automatic Transmission............................ 415
Power Steering........................................ 431
Windshield Washer.................................. 432
Fog Lamp Light........................................... 241
Fog Lamps.................................................. 211
Front Axle................................................... 446
Fuel............................................................ 399
Additives.................................................. 400
California Fuel.......................................... 400
Filling a Portable Fuel Container.............. 404
Filling Your Tank...................................... 402
Fuels in Foreign Countries....................... 401Fuel (cont.)
Gage....................................................... 242
Gasoline Octane...................................... 399
Gasoline Specications............................ 399
Fuses
Center Instrument Panel Fuse Block........ 512
Fuses and Circuit Breakers...................... 509
Instrument Panel Fuse Block................... 510
Underhood Fuse Block............................. 513
Windshield Wiper..................................... 509
G
Gage
Engine Coolant Temperature.................... 235
Fuel......................................................... 242
Speedometer........................................... 227
Tachometer.............................................. 227
Garage Door Opener..........................154, 155
Gasoline
Octane..................................................... 399
Specications........................................... 399
Glove Box................................................... 165
GM Mobility Reimbursement Program.......... 547
570