2013 GMC SAVANA fuel additives

Black plate (1,1)GMC Savana Owner Manual - 2013 - 2nd Edition - 9/25/12
Driving and Operating 9-1
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . . 9-2
Defensive Driving . . . . . . . . . . . . . 9-3
Drunk Driving . . . . . . . . . . . . . . . . . 9-3
Control of a Vehicle . . . . . . . . . . . 9-3
Braking . . . . . . . . . . . . . . . . . . . . . . . 9-3
Steering . . . . . . . . . . . . . . . . . . . . . . . 9-4
Off-Road Recovery . . . . . . . . . . . . 9-4
Loss of Control . . . . . . . . . . . . . . . . 9-5
Driving on Wet Roads . . . . . . . . . 9-5
Highway Hypnosis . . . . . . . . . . . . 9-6
Hill and Mountain Roads . . . . . . 9-6
Winter Driving . . . . . . . . . . . . . . . . . 9-7
If the Vehicle Is Stuck . . . . . . . . . 9-9
Vehicle Load Limits . . . . . . . . . . 9-10
Starting and Operating
New Vehicle Break-In . . . . . . . . 9-14
Ignition Positions . . . . . . . . . . . . 9-15
Starting the Engine . . . . . . . . . . 9-16
Fast Idle System . . . . . . . . . . . . . 9-18Engine Heater . . . . . . . . . . . . . . . 9-18
Retained Accessory
Power (RAP) . . . . . . . . . . . . . . . 9-19
Shifting Into Park . . . . . . . . . . . . 9-19
Shifting out of Park . . . . . . . . . . 9-20
Parking over Things That Burn . . . . . . . . . . . . . . . . . . 9-21
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 9-21
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . 9-22
Automatic Transmission
Automatic Transmission(Six Speed) . . . . . . . . . . . . . . . . 9-22
Automatic Transmission (Four Speed) . . . . . . . . . . . . . . . 9-26
Manual Mode . . . . . . . . . . . . . . . . 9-28
Tow/Haul Mode . . . . . . . . . . . . . . 9-29
Drive Systems
All-Wheel Drive . . . . . . . . . . . . . . 9-30
Brakes
Antilock Brake System (ABS) . . . . . . . . . . . . . . 9-30
Parking Brake . . . . . . . . . . . . . . . 9-31
Ride Control Systems
StabiliTrak®System . . . . . . . . . 9-32
Locking Rear Axle . . . . . . . . . . . 9-34
Cruise Control
Cruise Control . . . . . . . . . . . . . . . 9-34
Object Detection Systems
Ultrasonic Parking Assist . . . . 9-37
Rear Vision Camera (RVC) . . . . . . . . . . . . . 9-38
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . 9-41
Recommended Fuel . . . . . . . . . 9-42
Gasoline Specifications . . . . . . 9-42
California FuelRequirements . . . . . . . . . . . . . . 9-43
Fuels in Foreign Countries . . . 9-43
Fuel Additives . . . . . . . . . . . . . . . 9-43
Fuel E85 (85% Ethanol) . . . . . 9-44
Filling the Tank . . . . . . . . . . . . . . 9-45
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 9-46

Black plate (42,1)GMC Savana Owner Manual - 2013 - 2nd Edition - 9/25/12
9-42 Driving and Operating
Vehicles that have a yellow fuel cap
can use either unleaded gasoline or
ethanol fuel containing up to 85%
ethanol (E85). SeeFuel E85 (85%
Ethanol) on page 9‑44. For all other
vehicles, use only the unleaded
gasoline described under
Recommended Fuel on page 9‑42.
Recommended Fuel
Use regular unleaded gasoline with
a posted octane rating of 87 or
higher. If the octane rating is less
than 87, an audible knocking noise,
commonly referred to as spark
knock, might be heard when driving. If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. If heavy knocking is heard
when using gasoline rated at
87 octane or higher, the engine
needs service.
Gasolines containing oxygenates,
such as ethers and ethanol, as well
as reformulated gasolines are
available in some cities. If these
gasolines comply with the
previousely described specification,
then they are acceptable to use.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must be used only in
flex fuel vehicles.
{CAUTION
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). Do not use
gasolines with MMT as they can
reduce spark plug life and affect
emission control system
performance. The malfunction
indicator lamp may turn on. If this
occurs, see your dealer for service.
Gasoline Specifications
At a minimum, gasoline should meet
ASTM specification D 4814. Some
gasolines contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). We recommend
against the use of gasolines
containing MMT. See
Fuel Additives
on page 9‑43.

Black plate (43,1)GMC Savana Owner Manual - 2013 - 2nd Edition - 9/25/12
Driving and Operating 9-43
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.
SeeMalfunction Indicator Lamp on
page 5‑17. 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
If planning to drive in countries
outside the U.S. or Canada, the
proper fuel might be hard to find.
Check regional auto club or fuel
retail brand websites for availability
in the country where driving. Never
use leaded gasoline, fuel containing
methanol, or any other fuel not
recommended. Costly repairs
caused by use of improper fuel
would not be covered by the vehicle
warranty.
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 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
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.
Gasolines containing oxygenates,
such as ethers and ethanol, and
reformulated gasolines might be

Black plate (45,1)GMC Savana Owner Manual - 2013 - 2nd Edition - 9/25/12
Driving and Operating 9-45
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. SeeFilling
the Tank on page 9‑45.
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 vapors and fuel fires burn
violently and can cause injury or
death.
.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.
.Keep sparks, flames, and
smoking materials away
from fuel.
.Do not leave the fuel pump
unattended.
.Do not reenter the vehicle
while pumping fuel.
.Keep children away from the
fuel pump and never let
children pump fuel.
(Continued)
WARNING (Continued)
.Fuel can spray out if the fuel
cap is opened too quickly.
This spray can happen if the
tank is nearly full, and is
more likely in hot weather.
Open the fuel cap slowly and
wait for any hiss noise to stop
then unscrew the cap all
the way
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 9‑44.
To remove the fuel cap, turn it
slowly counterclockwise.
While refueling, hang the tethered
fuel cap from the hook on the
fuel door.

Black plate (4,1)GMC Savana Owner Manual - 2013 - 2nd Edition - 9/25/12
i-4 INDEX
E
E85 Fuel . . . . . . . . . . . . . . . . . . . . . . . 9-44
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . 9-57
Electrical System Engine CompartmentFuse Block . . . . . . . . . . . . . . . . 10-37
Floor Console Fuse Block . . 10-41
Fuses and Circuit Breakers . . . . . . . . . . . . . . . . . . 10-37
Overload . . . . . . . . . . . . . . . . . . . 10-37
Emergency OnStar
®. . . . . . . . . . . . . . . . . . . . . . 14-2
Engine Air Cleaner/Filter . . . . . . . . . . . 10-14
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 5-17
Compartment Overview . . . . . . . 10-5
Coolant . . . . . . . . . . . . . . . . . . . . . 10-16
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 5-12
Cooling System . . . . . . . . . . . . . 10-15
Cooling System Messages . . . 5-31
Drive Belt Routing . . . . . . . . . . . . 12-5
Exhaust . . . . . . . . . . . . . . . . . . . . . . 9-21
Fan . . . . . . . . . . . . . . . . . . . . . . . . . 10-21 Engine (cont'd)
Heater . . . . . . . . . . . . . . . . . . . . . . . . 9-18
Oil Life System . . . . . . . . . . . . . . . 10-8
Oil Messages . . . . . . . . . . . . . . . . . 5-32
Oil Pressure Gauge . . . . . . . . . . 5-11
Overheating . . . . . . . . . . . . . . . . 10-20
Power Messages . . . . . . . . . . . . . 5-32
Pressure Light . . . . . . . . . . . . . . . . 5-23
Running While Parked . . . . . . . . 9-22
Starting . . . . . . . . . . . . . . . . . . . . . . . 9-16
Enhanced Technology Glass . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Entry/Exit Lighting . . . . . . . . . . . . . . 6-6
Equipment, Towing . . . . . . . . . . . . 9-54
Extender, Safety Belt . . . . . . . . . . 3-14
Exterior Lamp Controls . . . . . . . . . 6-1
Exterior Lamps Off Reminder . . . 6-2
F
Fan Engine . . . . . . . . . . . . . . . . . . . . . . 10-21
Fast Idle System . . . . . . . . . . . . . . . 9-18
Filter, Engine Air Cleaner . . . . . . . . . 10-14
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 6-2
Flashers, Hazard Warning . . . . . . 6-4 Flat Tire . . . . . . . . . . . . . . . . . . . . . . 10-65
Changing . . . . . . . . . . . . . . . . . . . 10-67
Floor Mats . . . . . . . . . . . . . . . . . . . . 10-89
Fluid AutomaticTransmission . . . . . . . . . 10-9, 10-11
Brakes . . . . . . . . . . . . . . . . . . . . . . 10-24
Power Steering . . . . . . . . . . . . . 10-22
Washer . . . . . . . . . . . . . . . . . . . . . 10-22
Front Axle . . . . . . . . . . . . . . . . . . . . 10-27
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . 3-2
Front Storage . . . . . . . . . . . . . . . . . . . 4-1
Front Turn Signal Bulb Replacement . . . . . . . . . . 10-33
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-41
Additives . . . . . . . . . . . . . . . . . . . . . 9-43
E85 (85% Ethanol) . . . . . . . . . . . 9-44
Economy Driving . . . . . . . . . . . . . 1-19
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 9-46
Filling the Tank . . . . . . . . . . . . . . . 9-45
Foreign Countries . . . . . . . . . . . . 9-43
Gasoline Specifications . . . . . . . 9-42
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 5-10
Low Fuel Warning Light . . . . . . . 5-23