2018 CHEVROLET EXPRESS fuel additives
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Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
162 Driving and Operating
Driving and
Operating
Driving Information
Distracted Driving . . . . . . . . . . . . 163
Defensive Driving . . . . . . . . . . . . . 163
Drunk Driving . . . . . . . . . . . . . . . . . 164
Control of a Vehicle . . . . . . . . . . . 164
Braking . . . . . . . . . . . . . . . . . . . . . . . 164
Steering . . . . . . . . . . . . . . . . . . . . . . 164
Off-Road Recovery . . . . . . . . . . . 165
Loss of Control . . . . . . . . . . . . . . . 165
Driving on Wet Roads . . . . . . . . 166
Hill and Mountain Roads . . . . . 167
Winter Driving . . . . . . . . . . . . . . . . 167
If the Vehicle Is Stuck . . . . . . . . 169
Vehicle Load Limits . . . . . . . . . . . 169
Starting and Operating
New Vehicle Break-In . . . . . . . . . 173
Ignition Positions . . . . . . . . . . . . . 174
Starting the Engine . . . . . . . . . . . 175
Fast Idle System . . . . . . . . . . . . . 176
Retained AccessoryPower (RAP) . . . . . . . . . . . . . . . . 177
Engine Coolant Heater . . . . . . . 177
Shifting Into Park . . . . . . . . . . . . . 179
Shifting out of Park . . . . . . . . . . . 180 Parking over Things
That Burn . . . . . . . . . . . . . . . . . . . 180
Engine Exhaust
Engine Exhaust . . . . . . . . . . . . . . 181
Running the Vehicle WhileParked . . . . . . . . . . . . . . . . . . . . . . 181
Automatic Transmission
Automatic Transmission . . . . . . 182
Manual Mode . . . . . . . . . . . . . . . . . 185
Tow/Haul Mode . . . . . . . . . . . . . . . 185
Brakes
Antilock BrakeSystem (ABS) . . . . . . . . . . . . . . . 186
Parking Brake . . . . . . . . . . . . . . . . 187
Brake Assist . . . . . . . . . . . . . . . . . . 188
Hill Start Assist (HSA) . . . . . . . . 188
Ride Control Systems
Traction Control/Electronic Stability Control . . . . . . . . . . . . . 188
Locking Rear Axle . . . . . . . . . . . . 190
Cruise Control
Cruise Control . . . . . . . . . . . . . . . . 191
Driver Assistance Systems
Rear Vision Camera (RVC) . . . 193
Parking Assist . . . . . . . . . . . . . . . . 194 Side Blind Zone
Alert (SBZA) . . . . . . . . . . . . . . . . 195
Fuel
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 197
California FuelRequirements . . . . . . . . . . . . . . . 198
Fuels in Foreign Countries . . . 198
Fuel Additives . . . . . . . . . . . . . . . . 198
E85 or FlexFuel . . . . . . . . . . . . . . 199
Filling the Tank . . . . . . . . . . . . . . . 200
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 201
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 202
Driving Characteristics and Towing Tips . . . . . . . . . . . . . . . . . 202
Trailer Towing . . . . . . . . . . . . . . . . 205
Towing Equipment . . . . . . . . . . . . 209
Trailer Sway Control (TSC) . . . 211
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 212
Page 199 of 356
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
198 Driving and Operating
Use regular unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 87 or
higher. Do not use gasoline with a
posted octane rating of less than 87,
as this may cause engine knock and
will lower fuel economy.
Prohibited Fuels
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:. For vehicles which are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16 –50%
ethanol), E85, or FlexFuel.
. Fuel with any amount of
methanol, methylal, and
aniline. These fuels can
corrode metal fuel system
parts or damage plastic and
rubber parts.
(Continued)
Caution (Continued)
.Fuel containing metals such
as methylcyclopentadienyl
manganese tricarbonyl
(MMT), which can damage
the emissions control
system and spark plugs.
. Fuel with a posted octane
rating of less than the
recommended fuel. Using
this fuel will lower fuel
economy and performance,
and may decrease the life of
the emissions catalyst.
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 may be
affected. The malfunction indicator
lamp could turn on and the vehicle
may not pass a smog-check test.
See
Malfunction Indicator Lamp
(Check Engine Light) 0105. 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
The U.S., Canada, and Mexico post
fuel octane ratings in anti-knock
index (AKI). For fuel not to use in a
foreign country, see “Prohibited
Fuels” inFuel 0197.
Fuel Additives
To keep fuel systems clean, TOP
TIER detergent gasoline is
recommended. See Fuel0197.
Page 200 of 356
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Driving and Operating 199
If TOP TIER detergent gasoline is
not available, one bottle of GM Fuel
System Treatment Cleaner added to
the fuel tank at every engine oil
change, can help. GM Fuel System
Treatment Cleaner is the only
gasoline additive recommended by
General Motors. It is available at
your dealer.
If your vehicle is able to use E85 or
FlexFuel, GM Fuel System
Treatment Cleaner - FlexFuel is the
only recommended additive for use.
Do not use any other additives with
an E85 or FlexFuel vehicle. See
E85 or FlexFuel0199.
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.
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. See
Filling the
Tank 0200.
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.
Page 348 of 356
Chevrolet Express Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
11374212) - 2018 - crc - 2/2/18
Index 347
Driving (cont'd)Wet Roads . . . . . . . . . . . . . . . . . . . 166
Winter . . . . . . . . . . . . . . . . . . . . . . . . 167
Dual Tire
Rotation . . . . . . . . . . . . . . . . . . . . . . 270
E
E85 or FlexFuel . . . . . . . . . . . . . . . . 199
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 212
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 248
Floor Console Fuse Block . . . . 253
Fuses and Circuit Breakers . . . 248
Overload . . . . . . . . . . . . . . . . . . . . . 248
Emergency OnStar . . . . . . . . . . . . . . . . . . . . . . . 333
Engine
Air Cleaner/Filter . . . . . . . . . . . . . 227
Check Light (MalfunctionIndicator) . . . . . . . . . . . . . . . . . . . . 105
Compartment Overview . . . . . . . 217
Coolant Heater . . . . . . . . . . . . . . . 177
Coolant Temperature Gauge . . . . . . . . . . . . . . . . . . . . . . 101
Cooling System . . . . . . . . . . . . . . . 229 Engine (cont'd)
Drive Belt Routing . . . . . . . . . . . . 317
Exhaust . . . . . . . . . . . . . . . . . . . . . . 181
Fan . . . . . . . . . . . . . . . . . . . . . . . . . . . 234
Oil Life System . . . . . . . . . . . . . . . 222
Oil Pressure Gauge . . . . . . . . . . 100
Oil Pressure Light . . . . . . . . . . . . 109
Overheating . . . . . . . . . . . . . . . . . . 233
Power Messages . . . . . . . . . . . . . .116
Running While Parked . . . . . . . . 181
Starting . . . . . . . . . . . . . . . . . . . . . . . 175
Enhanced Technology Glass . . . . 40
Entry/Exit Lighting . . . . . . . . . . . . . . 127
Equipment, Towing . . . . . . . . . . . . . 209
Event Data Recorders . . . . . . . . . . 330
Extender, Seat Belt . . . . . . . . . . . . . . 55
Exterior Lamp Controls . . . . . . . . . 122
Exterior Lamps Off Reminder . . . 123
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 127
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 234
Fast Idle System . . . . . . . . . . . . . . . . 176
Filter, Engine Air Cleaner . . . . . . . . . . . 227 Flash-to-Pass . . . . . . . . . . . . . . . . . . . 123
Flashers, Hazard Warning . . . . . . 125
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 276
Changing . . . . . . . . . . . . . . . . . . . . . 278
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 300
Fluid
AutomaticTransmission . . . . . . . . . . . 223, 226
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 237
Power Steering . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 235
Folding Mirrors . . . . . . . . . . . . . . . . . . 37
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 328
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Front Storage . . . . . . . . . . . . . . . . . . . . 88
Front Turn Signal Bulb Replacement . . . . . . . . . . . . 245
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 Additives . . . . . . . . . . . . . . . . . . . . . 198
Economy Driving . . . . . . . . . . . . . . . 23
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 201