2016 GMC SAVANA fuel additives

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9159232) -
2016 - crc - 11/11/15
Driving and Operating 163
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 164
Defensive Driving . . . . . . . . . . . . . 164
Drunk Driving . . . . . . . . . . . . . . . . . 164
Control of a Vehicle . . . . . . . . . . . 165
Braking . . . . . . . . . . . . . . . . . . . . . . . 165
Steering . . . . . . . . . . . . . . . . . . . . . . 165
Off-Road Recovery . . . . . . . . . . . 166
Loss of Control . . . . . . . . . . . . . . . 166
Driving on Wet Roads . . . . . . . . 167
Hill and Mountain Roads . . . . . 168
Winter Driving . . . . . . . . . . . . . . . . 168
If the Vehicle Is Stuck . . . . . . . . 169
Vehicle Load Limits . . . . . . . . . . . 170
Starting and Operating
New Vehicle Break-In . . . . . . . . . 174
Ignition Positions . . . . . . . . . . . . . 174
Starting the Engine . . . . . . . . . . . 176
Fast Idle System . . . . . . . . . . . . . 177
Engine Heater . . . . . . . . . . . . . . . . 178
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . 179
Shifting Into Park . . . . . . . . . . . . . 179
Shifting out of Park . . . . . . . . . . . 180 Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 181
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 181
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 182
Automatic Transmission
Automatic Transmission . . . . . . 182
Manual Mode . . . . . . . . . . . . . . . . . 185
Tow/Haul Mode . . . . . . . . . . . . . . . 186
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 187
Parking Brake . . . . . . . . . . . . . . . . 188
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 188
Locking Rear Axle . . . . . . . . . . . . 190
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 190
Driver Assistance Systems
Rear Vision Camera (RVC) . . . 193
Parking Assist . . . . . . . . . . . . . . . . 195
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 197 California Fuel
Requirements . . . . . . . . . . . . . . . 198
Fuels in Foreign Countries . . . 198
Fuel Additives . . . . . . . . . . . . . . . . 198
E85 or FlexFuel . . . . . . . . . . . . . . 198
Filling the Tank . . . . . . . . . . . . . . . 199
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 201
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 201
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 201
Trailer Towing . . . . . . . . . . . . . . . . 204
Towing Equipment . . . . . . . . . . . . 208
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 211

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9159232) -
2016 - crc - 11/11/15
Driving and Operating 197
Fuel
For diesel engine vehicles, see
“Fuel for Diesel Engines”in the
Duramax diesel supplement.
For gasoline engine vehicles, use of
the recommended fuel is an
important part of the proper
maintenance of this vehicle. When
driving in the U.S. and Canada, to
help keep the engine clean and
maintain optimum vehicle
performance, we recommend using
TOP TIER Detergent Gasolines.
See www.toptiergas.com for a list of
TOP TIER Detergent Gasolines.
If the vehicle has a yellow fuel cap,
E85 or FlexFuel can be used in the
vehicle. See E85 or FlexFuel 0198.
Use regular unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 87 or
higher. Do not use gasoline with an
octane rating below 87; as it may
cause engine damage and will lower
fuel economy.
Use of Seasonal Fuels
Use summer and winter fuels in the
appropriate season. The fuels
industry automatically modifies the
fuel for the appropriate season.
If fuel is left in the vehicle tank for
long periods of time, driving or
starting could be affected. Drive the
vehicle until the fuel is at one-half
tank or less, then refuel with the
current seasonal fuel.
Prohibited Fuels
Gasolines containing oxygenates
such as ethers and ethanol, as well
as reformulated gasolines, are
available in some cities. If these
gasolines comply with the
previously 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
FlexFuel 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, mainly high octane
racing gasolines, can contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT). Do not use
gasolines and/or fuel additives 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.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9159232) -
2016 - crc - 11/11/15
198 Driving and Operating
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 may not pass a smog-check
test. SeeMalfunction Indicator
Lamp (Check Engine Light) 0100.
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 may 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, manganese, 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 keep fuel systems clean, TOP
TIER Detergent Gasoline is
recommended. See Fuel0197.
If TOP TIER Detergent Gasoline is
not available, one bottle of Fuel
System Treatment PLUS added to
the fuel tank at every engine oil
change can help. Fuel System
Treatment PLUS is the only
gasoline additive recommended by
General Motors. It is available at
your dealer. Do not use additives with E85 or
FlexFuel.
E85 or FlexFuel
Vehicles with a yellow fuel cap can
use either unleaded gasoline or fuel
containing up to 85% ethanol (E85).
All other vehicles should use only
the unleaded gasoline as described
in
Fuel 0197.
The use of E85 or FlexFuel is
encouraged when the vehicle is
designed to use it. E85 or FlexFuel
is made from renewable sources.
To help locate fuel stations that
carry E85 or FlexFuel, the U.S.
Department of Energy has an
alternative fuels website. See
www.afdc.energy.gov/afdc/locator/
stations.
E85 or FlexFuel should meet ASTM
Specification D 5798 or CAN/
CGSB–3.512 in Canada. Do not use
the fuel if the ethanol content is
greater than 85%. Fuel mixtures that
do not meet ASTM or CGSB
specifications can affect driveability
and could cause the malfunction
indicator lamp to come on.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9159232) -
2016 - crc - 11/11/15
Driving and Operating 199
After refueling, the vehicle
calculates the composition of the
fuel. It is not recommended to
repeatedly switch between fuels.
If fuels are switched frequently, add
as much fuel as possible and do not
add less than 11 L (3 gal) when
refueling. Drive at least 11 km (7 mi)
immediately after refueling to allow
the vehicle to adapt to the change in
ethanol concentration.
Because E85 or FlexFuel has less
energy per liter (gallon) than
gasoline, the vehicle will need to be
refilled more often. SeeFilling the
Tank 0199.
Caution
Some additives are not
compatible with E85 or FlexFuel
and can harm the vehicle's fuel
system. Do not add anything to
E85 or FlexFuel. Damage caused
by additives would not be covered
by the vehicle warranty.
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.
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.
(Continued)
Warning (Continued)
.Do not leave the fuel pump
unattended.
. Do not use a cell phone
while refueling.
. Do not re-enter the vehicle
while pumping fuel.
. Keep children away from
the fuel pump and never let
children pump fuel.
. 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.

GMC Savana Owner Manual (GMNA-Localizing-U.S./Canada-9159232) -
2016 - crc - 11/11/15
336 Index
Electrical SystemEngine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 243
Floor Console Fuse Block . . . . 247
Fuses and Circuit Breakers . . . 243
Overload . . . . . . . . . . . . . . . . . . . . . 243
Emergency
OnStar
®. . . . . . . . . . . . . . . . . . . . . . 324
Engine Air Cleaner/Filter . . . . . . . . . . . . . 223
Check and Service EngineSoon Light . . . . . . . . . . . . . . . . . . 100
Compartment Overview . . . . . . . 216
Coolant . . . . . . . . . . . . . . . . . . . . . . . 224
Coolant Temperature Gauge . . . . 97
Cooling System . . . . . . . . . . . . . . . 224
Cooling System Messages . . . .112
Drive Belt Routing . . . . . . . . . . . . 308
Exhaust . . . . . . . . . . . . . . . . . . . . . . 181
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
Heater . . . . . . . . . . . . . . . . . . . . . . . . 178
Oil Life System . . . . . . . . . . . . . . . 219
Oil Messages . . . . . . . . . . . . . . . . . .113
Oil Pressure Gauge . . . . . . . . . . . . 96
Oil Pressure Light . . . . . . . . . . . . 104
Overheating . . . . . . . . . . . . . . . . . . 228
Power Messages . . . . . . . . . . . . . .113
Running While Parked . . . . . . . . 182 Engine (cont'd)
Starting . . . . . . . . . . . . . . . . . . . . . . . 176
Enhanced Technology Glass . . . . 38
Entry/Exit Lighting . . . . . . . . . . . . . . 128
Equipment, Towing . . . . . . . . . . . . . 208
Event Data Recorders . . . . . . . . . . 321
Extender, Safety Belt . . . . . . . . . . . . 53
Exterior Lamp Controls . . . . . . . . . 123
Exterior Lamps Off Reminder . . . 124
F
Fan Engine . . . . . . . . . . . . . . . . . . . . . . . . 229
Fast Idle System . . . . . . . . . . . . . . . . 177
Filter,
Engine Air Cleaner . . . . . . . . . . . 223
Fixed Mast Antenna . . . . . . . . . . . . 139
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 124
Flashers, Hazard Warning . . . . . . 126
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 270 Changing . . . . . . . . . . . . . . . . . . . . . 271
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 292
Fluid
Automatic Transmission . . . . . . 220
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 232
Power Steering . . . . . . . . . . . . . . . 229
Washer . . . . . . . . . . . . . . . . . . . . . . . 230 Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 319
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 41
Front Storage . . . . . . . . . . . . . . . . . . . . 84
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 240
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Additives . . . . . . . . . . . . . . . . . . . . . 198
Economy Driving . . . . . . . . . . . . . . . 21
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 201
Filling the Tank . . . . . . . . . . . . . . . 199
Foreign Countries . . . . . . . . . . . . 198
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Low Fuel Warning Light . . . . . . . 105
Requirements, California . . . . . 198
System Messages . . . . . . . . . . . . .113
Full-Size Spare Tire . . . . . . . . . . . . 278
Fuses Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 243
Floor Console Fuse Block . . . . 247
Fuses and Circuit Breakers . . . 243