2012 CHEVROLET SUBURBAN fuel additives

Black plate (2,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
9-2 Driving and Operating
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-60
Recommended Fuel . . . . . . . . . 9-60
Gasoline Specifications(U.S. and Canada Only) . . . . 9-60
California Fuel
Requirements . . . . . . . . . . . . . . 9-61
Fuels in Foreign Countries . . . 9-61
Fuel Additives . . . . . . . . . . . . . . . 9-61
Fuel E85 (85% Ethanol) . . . . . 9-62
Filling the Tank . . . . . . . . . . . . . . 9-63
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 9-65
Towing
General TowingInformation . . . . . . . . . . . . . . . . . 9-65
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . 9-66
Trailer Towing . . . . . . . . . . . . . . . . 9-70
Towing Equipment . . . . . . . . . . . 9-75
Trailer Sway Control (TSC) . . . . . . . . . . . . . . 9-84
Conversions and Add-Ons
Add-On ElectricalEquipment . . . . . . . . . . . . . . . . . 9-85
Adding a Snow Plow or Similar Equipment . . . . . . . . . . 9-85
Driving Information
Distracted Driving
Distraction comes in many forms
and can take your focus from the
task of driving. Exercise good
judgment and do not let other
activities divert your attention
away from the road. Many local
governments have enacted laws
regarding driver distraction. Become
familiar with the local laws in
your area.
To avoid distracted driving, always
keep your eyes on the road, hands
on the wheel, and mind on the drive.
.Do not use a phone in
demanding driving situations.
Use a hands-free method to
place or receive necessary
phone calls.
.Watch the road. Do not
read, take notes, or look up
information on phones or
other electronic devices.
.Designate a front seat
passenger to handle potential
distractions.
.Become familiar with vehicle
features before driving, such as
programming favorite radio
stations and adjusting climate
control and seat settings.
Program all trip information into
any navigation device prior to
driving.
.Wait until the vehicle is parked
to retrieve items that have fallen
to the floor.
.Stop or park the vehicle to tend
to children.
.Keep pets in an appropriate
carrier or restraint.
.Avoid stressful conversations
while driving, whether with a
passenger or on a cell phone.

Black plate (61,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
Driving and Operating 9-61
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. SeeFuel Additives
on page 9‑61 for additional
information.
California Fuel
Requirements
If the 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, the vehicle will operate
satisfactorily on fuels meeting
federal specifications, but emission
control system performance might
be affected. The malfunction
indicator lamp could turn on and the
vehicle might fail a smog‐check test.
See Malfunction Indicator Lamp on
page 5‑18. If this occurs, return to
your authorized dealer 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.
Fuels in Foreign
Countries
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.
Fuel 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, nothing
should have to be added to the fuel.
However, some gasolines containonly the minimum amount of
additive required to meet U.S.
Environmental Protection Agency
regulations. To help keep fuel
injectors and intake valves clean
and avoid problems due to dirty
injectors or valves, look for gasoline
that is advertised as TOP TIER
Detergent Gasoline. Look for the
TOP TIER label on the fuel pump to
ensure gasoline meets enhanced
detergency standards developed by
the auto companies. A list of
marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
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.
It is available at your dealer.

Black plate (63,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
Driving and Operating 9-63
It is best not to alternate repeatedly
between gasoline and E85. If you
do switch fuels, it is recommended
that you add as much fuel as
possible—do not add less than
11 L (3 gal) when refueling. You
should drive the vehicle immediately
after refueling for at least 11 km
(7 mi) to allow the vehicle to
adapt to the change in ethanol
concentration.
E85 has less energy per liter
(gallon) than gasoline, so you will
need to refill the fuel tank more
often when using E85 than when
you are using gasoline. See Filling
the Tank on page 9‑63.
Notice: Some additives are not
compatible with E85 fuel and can
harm the vehicle's fuel system.
Do not add anything to E85.
Damage caused by additives
would not be covered by the
vehicle warranty. 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.
Filling the Tank
{WARNING
Fuel vapor burns violently and a
fuel fire can cause bad injuries.
To help avoid injuries to you and
others, read and follow all the
instructions on the fuel pump
island. Turn off the engine when
refueling. Do not smoke near fuel
or when refueling the vehicle. Do
not use cellular phones. Keep
(Continued)
WARNING (Continued)
sparks, flames, and smoking
materials away from fuel. Do not
leave the fuel pump unattended
when refueling the vehicle. This is
against the law in some places.
Do not re-enter the vehicle while
pumping fuel. Keep children away
from the fuel pump; never let
children pump fuel.
The tethered fuel cap is located
behind a hinged fuel door on the
driver side of the vehicle. If the
vehicle has E85 fuel capability, the
fuel cap will be yellow and state
that E85 or gasoline can be used.
See Fuel E85 (85% Ethanol) on
page 9‑62.

Black plate (5,1)Chevrolet Tahoe/Suburban Owner Manual - 2012
INDEX i-5
FluidAutomatic Transmission . . . . .10-11
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-25
Four-Wheel Drive
Transfer Case . . . . . . . . . 9-36, 9-41
Power Steering . . . . . . . . . . . . . 10-22
Washer . . . . . . . . . . . . . . . . . . . . . 10-23
Fog Lamps Bulb Replacement . . . . . . . . . . . . . 6-6
Folding Mirrors . . . . . . . . . . . . . . . . 2-17
Four-Wheel Drive . . . . . . . . . . . . 9-36, 9-41, 10-27
Front Axle . . . . . . . . . . . . . . . . . . . . 10-27
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . 3-3
Heated and Ventilated . . . . . . . . . 3-9
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-60 Additives . . . . . . . . . . . . . . . . . . . . . 9-61
E85 (85% Ethanol) . . . . . . . . . . . 9-62
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-65 Fuel (cont'd)
Filling the Tank . . . . . . . . . . . . . . . 9-63
Fuels in Foreign Countries . . . . 9-61
Gasoline Specifications . . . . . . . 9-60
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Low Fuel Warning Light . . . . . . . 5-24
Management, Active . . . . . . . . . . 9-28
Recommended . . . . . . . . . . . . . . . 9-60
Requirements, California . . . . . 9-61
System Messages . . . . . . . . . . . . 5-39
Fuel Economy Driving . . . . . . . . . . . . . . . . . . . . . . . . 1-27
Full-Size Spare Tire . . . . . . . . . . 10-81
Fuses Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-37
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-37
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . 10-41G
Garage Door Opener . . . . . . . . . . 5-53Programming . . . . . . . . . . . . . . . . . 5-53
Gasoline Specifications . . . . . . . . . . . . . . . . . 9-60
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . 5-14
Engine Oil Pressure . . . . . . . . . . 5-13
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Odometer . . . . . . . . . . . . . . . . . . . . . 5-12
Speedometer . . . . . . . . . . . . . . . . . 5-12
Tachometer . . . . . . . . . . . . . . . . . . . 5-12
Trip Odometer . . . . . . . . . . . . . . . . 5-12
Voltmeter . . . . . . . . . . . . . . . . . . . . . 5-15
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 5-10
General Information Service and Maintenance . . . . . 11-1
Towing . . . . . . . . . . . . . . . . . . . . . . . . 9-65
Vehicle Care . . . . . . . . . . . . . . . . . . 10-2