2009 CADILLAC XLR fuel additives

Service............................................................6-3
Accessories and Modications..........................6-3
California Proposition 65 Warning.....................6-4
California Perchlorate Materials Requirements.....6-4
Doing Your Own Service Work.........................6-4
Adding Equipment to the Outside of the
Vehicle......................................................6-5
Fuel................................................................6-5
Gasoline Octane............................................6-5
Gasoline Specications....................................6-6
California Fuel...............................................6-6
Additives.......................................................6-6
Fuels in Foreign Countries...............................6-7
Filling the Tank..............................................6-8
Filling a Portable Fuel Container.....................6-10
Checking Things Under the Hood....................6-10
Hood Release..............................................6-11
Engine Compartment Overview.......................6-12
Engine Oil...................................................6-15
Engine Oil Life System..................................6-18
Engine Air Cleaner/Filter................................6-20
Automatic Transmission Fluid.........................6-21
Cooling System............................................6-22
Engine Coolant.............................................6-23Engine Overheating.......................................6-27
Overheated Engine Protection
Operating Mode........................................6-29
Power Steering Fluid.....................................6-30
Windshield Washer Fluid................................6-31
Brakes........................................................6-32
Battery........................................................6-35
Jump Starting...............................................6-36
Rear Axle.......................................................6-41
Headlamp Aiming...........................................6-42
Headlamp Vertical Aiming..............................6-43
Bulb Replacement..........................................6-45
Windshield Replacement.................................6-45
Windshield Wiper Blade Replacement..............6-45
Tires..............................................................6-46
Winter Tires (XLR-V).....................................6-47
Tire Sidewall Labeling...................................6-48
Tire Terminology and Denitions.....................6-50
Run-Flat Tires..............................................6-52
Ination - Tire Pressure.................................6-54
Tire Pressure Monitor System.........................6-55
Tire Pressure Monitor Operation.....................6-57
Tire Inspection and Rotation...........................6-60
Section 6 Service and Appearance Care
6-1

If the vehicle has the 4.4L V8 engine (VIN Code D),
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 might also hear audible spark knock
during acceleration. Rell the tank with premium fuel as
soon as possible to avoid damaging the engine. If you are
using gasoline rated at 91 octane or higher and you hear
heavy knocking, the engine needs service.
Gasoline Specications
At a minimum, gasoline should meet ASTM specication
D 4814 in the United States or CAN/CGSB-3.5 or 3.511
in Canada. Some gasolines contain an octane-enhancing
additive called methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend against the use of
gasolines containing MMT. SeeAdditives on page 6-6
for additional information.
California Fuel
If the 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, the
vehicle will operate satisfactorily on fuels meeting federal
specications, but emission control system performance
might be affected. The malfunction indicator lamp
could turn on and the vehicle might fail a smog-check
test. SeeMalfunction Indicator Lamp on page 3-50.
If this occurs, return to your authorized dealer/retailer for
diagnosis. If it is determined that the condition is
caused by the type of fuel used, repairs might not be
covered by the vehicle warranty.
Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that help prevent
engine and fuel system deposits from forming, allowing
the emission control system to work properly. In most
cases, you should not have to add anything to the 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
6-6

and intake valves clean, or if the vehicle experiences
problems due to dirty injectors or valves, look for gasoline
that is advertised as TOP TIER Detergent Gasoline.
For customers who do not use TOP TIER Detergent
Gasoline regularly, one bottle of GM Fuel System
Treatment PLUS, added to the fuel tank at every engine
oil change, can help clean deposits from fuel injectors
and intake valves. GM Fuel System Treatment PLUS is
the only gasoline additive recommended by General
Motors.
Also, your dealer/retailer has additives that will help
correct and prevent most deposit-related problems.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines might be available in
your area. We recommend 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.
Notice:This 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 the
vehicle warranty.Some gasolines that are not reformulated for low
emissions can contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. We recommend against
the use of such gasolines. Fuels containing MMT can
reduce the life of spark plugs and the performance of
the emission control system could be affected.
The malfunction indicator lamp might turn on. If this
occurs, return to your dealer/retailer for service.
Fuels in Foreign Countries
If you plan on driving in another country outside the
United States or Canada, the proper fuel might be hard
to nd. Never use leaded gasoline or any other fuel
not recommended in the previous text on fuel. Costly
repairs caused by use of improper fuel would not
be covered by the vehicle warranty.
To check the fuel availability, ask an auto club, or
contact a major oil company that does business in the
country where you will be driving.
6-7

A
Accessories and Modications............................ 6-3
Accessory Power Outlets.................................3-34
Adaptive Cruise Control...................................3-14
Adaptive Forward Lighting System.....................3-28
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-50
Additives, Fuel................................................. 6-6
Add-On Electrical Equipment............................6-82
Air Cleaner/Filter, Engine.................................6-20
Air Conditioning..............................................3-36
Airbag
Passenger Status Indicator...........................3-45
Readiness Light..........................................3-44
Airbag System................................................1-38
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-50
How Does an Airbag Restrain?......................1-43
Passenger Sensing System...........................1-45
Servicing Your Airbag-Equipped Vehicle..........1-50
What Makes an Airbag Inate?......................1-43
What Will You See After an Airbag Inates?....1-44
When Should an Airbag Inate?....................1-42
Where Are the Airbags?...............................1-40
Antenna, Diversity Antenna System...................3-91Antenna, XM™ Satellite Radio Antenna
System......................................................3-91
Antilock Brake System (ABS)............................. 5-5
Antilock Brake, System Warning Light................3-48
Appearance Care
Aluminum or Chrome-Plated Wheels..............6-79
Care of Safety Belts....................................6-76
Chemical Paint Spotting...............................6-81
Cleaning Exterior Lamps/Lenses....................6-77
Fabric/Carpet..............................................6-75
Fiberglass Springs.......................................6-81
Finish Care.................................................6-78
Finish Damage............................................6-80
Instrument Panel, Vinyl, and Other Plastic
Surfaces.................................................
6-76
Interior Cleaning..........................................6-74
Leather......................................................6-75
Sheet Metal Damage...................................6-80
Speaker Covers..........................................6-76
Tires..........................................................6-80
Underbody Maintenance...............................6-80
Washing Your Vehicle...................................6-77
Weatherstrips..............................................6-77
Windshield and Wiper Blades........................6-78
Wood Panels..............................................6-76
Appointments, Scheduling Service.....................8-10
1

Engine
Air Cleaner/Filter.........................................6-20
Check and Service Engine Soon Lamp...........3-50
Coolant......................................................6-23
Coolant Temperature Gage...........................3-49
Drive Belt Routing.......................................7-14
Engine Compartment Overview......................6-12
Exhaust.....................................................2-36
Oil .............................................................6-15
Oil Life System...........................................6-18
Oil Pressure Gage.......................................3-54
Overheated Protection Operating Mode...........6-29
Overheating................................................6-27
Starting......................................................2-26
Enter Destination............................................4-27
Entry/Exit Lighting...........................................3-30
Event Data Recorders.....................................8-17
Extender, Safety Belt.......................................1-23
Exterior Lamps...............................................3-26
Exterior Lighting Battery Saver..........................3-30
F
Filter
Engine Air Cleaner......................................6-20
Finish Damage...............................................6-80
Flashers, Hazard Warning.................................. 3-6Flash-to-Pass................................................... 3-8
Flat Tire........................................................6-72
Floor Mats.....................................................2-53
Fluid
Automatic Transmission................................6-21
Power Steering...........................................6-30
Windshield Washer......................................6-31
Fog Lamp
Fog ...........................................................3-28
Fog Lamp Light..............................................3-55
Fuel............................................................... 6-5
Additives...................................................... 6-6
California Fuel.............................................. 6-6
Filling a Portable Fuel Container....................6-10
Filling the Tank............................................. 6-8
Fuels in Foreign Countries.............................. 6-7
Gage .........................................................3-56
Gasoline Octane........................................... 6-5
Gasoline Specications.................................. 6-6
Fuses
Fuses and Circuit Breakers...........................6-83
Instrument Panel Fuse Block.........................6-83
Underhood Fuse Block.................................6-87
Windshield Wiper.........................................6-83
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