2007 CHEVROLET CORVETTE fuel additives

Service........................................................ 319
Accessories and Modications................... 319
California Proposition 65 Warning.............. 320
Doing Your Own Service Work.................. 320
Adding Equipment to the Outside
of Your Vehicle...................................... 321
Fuel............................................................. 321
Gasoline Octane........................................ 321
Gasoline Specications.............................. 322
California Fuel........................................... 322
Additives................................................... 323
Fuels in Foreign Countries........................ 324
Filling the Tank......................................... 324
Filling a Portable Fuel Container............... 327
Checking Things Under the Hood.............. 328
Hood Release........................................... 329
Engine Compartment Overview.................. 330
Engine Oil................................................. 333
Engine Oil Life System.............................. 340
Engine Air Cleaner/Filter............................ 342
Automatic Transmission Fluid.................... 345
Manual Transmission Fluid........................ 345
Hydraulic Clutch........................................ 346
Engine Coolant.......................................... 347
Coolant Surge Tank Pressure Cap............ 350Engine Overheating................................... 350
Overheated Engine Protection
Operating Mode..................................... 352
Cooling System......................................... 353
Power Steering Fluid................................. 358
Windshield Washer Fluid........................... 360
Brakes...................................................... 361
Battery...................................................... 364
Jump Starting............................................ 365
Rear Axle.................................................... 370
Bulb Replacement....................................... 371
High Intensity Discharge (HID) Lighting..... 371
Halogen Bulbs........................................... 372
Headlamps, Front Turn Signal, and
Parking Lamps....................................... 372
Taillamps, Turn Signal, and Stoplamps...... 374
Replacement Bulbs................................... 374
Windshield Replacement............................ 375
Windshield Wiper Blade Replacement....... 375
Tires............................................................ 378
Winter Tires.............................................. 379
Tire Sidewall Labeling............................... 380
Tire Terminology and Denitions............... 382
Extended Mobility Tires............................. 384
Ination - Tire Pressure............................. 386
Section 5 Service and Appearance Care
317

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.
If your vehicle has the 7.0L V8 engine
(VIN Code E), use premium unleaded gasoline
with a posted octane rating of 91 or higher.
For best performance, use premium unleaded
gasoline with a posted octane rating of 93.
In an emergency, you can use regular unleaded
gasoline with an octane rating of 87 or higher.
If 87 octane fuel is used, do not perform any
aggressive driving maneuvers such as wide open
throttle applications. You may also hear audible
spark knock during acceleration. Rell your
tank with premium fuel as soon as possible to
avoid damaging your engine. If you are using
gasoline rated at 91 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 323for additional information.
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 200.
322

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 specications described earlier.However, E85 (85% ethanol) and other fuels
containing more than 10% ethanol must no
be used in vehicles that were not designed for
those fuels.
Notice:Your vehicle was not designed for
fuel that contains methanol. Do not use
fuel containing methanol. It can corrode metal
parts in the fuel system and also damage
plastic and rubber parts. That damage would
not be covered under your warranty.
Some gasolines that are not reformulated for
low emissions may contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant where you
buy gasoline whether the fuel contains MMT.
General Motors recommends against the use of
such gasolines. Fuels containing MMT can reduce
the life of spark plugs and the performance of
the emission control system may be affected.
The malfunction indicator lamp may turn on.
If this occurs, return to your dealer for service.
323

A
Accessories and Modications..................... 319
Active Handling System............................... 283
Active Handling System Light...................... 198
Adding Equipment to Your
Airbag-Equipped Vehicle............................ 65
Additives, Fuel............................................ 323
Add-On Electrical Equipment....................... 418
Air Cleaner/Filter, Engine............................. 342
Air Conditioning........................................... 179
Airbag
Passenger Status Indicator....................... 192
Readiness Light....................................... 191
Airbag System............................................... 50
What Will You See After an
Airbag Inates?...................................... 58
When Should an Airbag Inate?................. 55
Where Are the Airbags?............................. 53
Airbag Systems
Adding Equipment to Your
Airbag-Equipped Vehicle......................... 65
How Does an Airbag Restrain?.................. 57
Passenger Sensing System....................... 59
Servicing Your Airbag-Equipped Vehicle..... 64
What Makes an Airbag Inate?.................. 57Antenna, Diversity Antenna System............. 272
Antenna, XM™ Satellite Radio
Antenna System....................................... 272
Anti-Lock Brake System.............................. 279
Anti-Lock Brake, System Warning Light....... 197
Appearance Care
Aluminum or Chrome-Plated Wheels........ 414
Care of Safety Belts................................ 411
Cargo Cover and Convenience Net.......... 411
Chemical Paint Spotting........................... 416
Cleaning Exterior Lamps/Lenses.............. 412
Cleaning the Inside of Your Vehicle.......... 407
Coated Moldings...................................... 409
Convertible Top........................................ 414
Fabric/Carpet........................................... 409
Fiberglass Springs................................... 416
Finish Care.............................................. 412
Finish Damage......................................... 415
Instrument Panel, Vinyl, and Other
Plastic Surfaces.................................... 410
Leather.................................................... 410
Removable Roof Panel............................ 413
Tires........................................................ 415
Underbody Maintenance........................... 416
Vehicle Care/Appearance Materials.......... 417
Washing Your Vehicle.............................. 411
473

Engine
Air Cleaner/Filter...................................... 342
Check and Service Engine Soon Light..... 200
Coolant.................................................... 347
Coolant Heater.......................................... 93
Coolant Temperature Gage...................... 199
Drive Belt Routing.................................... 446
Engine Compartment Overview................ 330
Exhaust................................................... 106
Oil ........................................................... 333
Oil Life System........................................ 340
Oil Pressure Gage................................... 204
Overheated Protection Operating Mode.... 352
Overheating............................................. 350
Running While Parked............................. 107
Starting...................................................... 91
Entry/Exit Lighting....................................... 173
Event Data Recorders................................. 470
Extended Mobility Tires............................... 384
Extender, Safety Belt..................................... 30
Exterior Lamps............................................ 168
Exterior Lighting Battery Saver.................... 172F
Filter
Engine Air Cleaner................................... 342
Finish Damage............................................ 415
Flashers, Hazard Warning........................... 158
Flash-to-Pass.............................................. 162
Flat Tire...................................................... 406
Floor Mats................................................... 130
Fluid
Automatic Transmission............................ 345
Manual Transmission................................ 345
Power Steering........................................ 358
Windshield Washer.................................. 360
Fog Lamp
Fog .......................................................... 171
Fog Lamp Light........................................... 205
Fuel............................................................ 321
Additives.................................................. 323
California Fuel.......................................... 322
Filling a Portable Fuel Container.............. 327
Filling Your Tank...................................... 324
478