fuel additives GMC TERRAIN 2019 Owner's Manual

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Driving and Operating 179
Fuel
Top Tier Fuel (Gasoline) . . . . . . 260
Top Tier Fuel (Diesel) . . . . . . . . . 260
Recommended Fuel (LYX -1.5L L4 Turbo Engine) . . . . . . 260
Recommended Fuel (LTG -
2.0L L4 Turbo Engine) . . . . . . 260
Prohibited Fuels (Gasoline) . . . 261
Fuels in Foreign Countries . . . 261
Fuel Additives (Gasoline) . . . . . 261
Fuel Additives (Diesel) . . . . . . . 262
Fuel for Diesel Engines . . . . . . . 262
Biodiesel . . . . . . . . . . . . . . . . . . . . . 263
Cold Weather Operation (Diesel) . . . . . . . . . . . . . . . . . . . . . 264
Water in Fuel (Diesel) . . . . . . . . 264
Running Out of Fuel (Diesel) . . . . . . . . . . . . . . . . . . . . . 267
Fuel Filter Replacement (Diesel) . . . . . . . . . . . . . . . . . . . . . 268
Filling the Tank (Gasoline) . . . . 268
Filling the Tank (Diesel) . . . . . . . 270
Filling a Portable Fuel Container (Gasoline) . . . . . . . . 272
Filling a Portable Fuel Container (Diesel) . . . . . . . . . . . 273
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 273 Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 274
Trailer Towing . . . . . . . . . . . . . . . . 277
Towing Equipment . . . . . . . . . . . . 280
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 282
Driving Information
Driver Behavior
Driving is an important
responsibility. Driver behavior, the
driving environment, and the
vehicle's design all affect how well a
vehicle performs.
Being aware of these factors can
help in understanding how the
vehicle handles and what can be
done to avoid many types of
crashes, including a rollover crash.
Most serious injuries and fatalities to
unbelted occupants can be reduced
or prevented by the use of seat
belts. In a rollover crash, an
unbelted person is significantly
more likely to die than a person
wearing a seat belt. In addition,
avoiding excessive speed, sudden
or abrupt turns, and drunken or
aggressive driving can help make
trips safer and avoid the possibility
of a crash.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
Driving and Operating 261
Using unleaded gasoline rated
below 93 octane, however, will lead
to reduced acceleration and fuel
economy. If knocking occurs, use a
gasoline rated at 93 octane as soon
as possible, otherwise, the engine
could be damaged. If heavy
knocking is heard when using
gasoline with a 93 octane rating, the
engine needs service.
Prohibited Fuels
(Gasoline)
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:. For vehicles that are not
FlexFuel, fuel labeled
greater than 15% ethanol by
volume, such as mid-level
ethanol blends (16–50%
ethanol), E85, or FlexFuel.
(Continued)
Caution (Continued)
.Fuel with any amount of
methanol, methylal,
ferrocene, and aniline.
These fuels can corrode
metal fuel system parts or
damage plastic and rubber
parts.
. 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.
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 (Gasoline) 0261.
Fuel Additives (Gasoline)
TOP TIER Detergent Gasoline is
highly recommended for use with
your vehicle. If your country does
not have TOP TIER Detergent
Gasoline, add ACDelco Fuel
System Treatment Plus−Gasoline to
the vehicle’ s gasoline fuel tank at
every oil change or 15,000 km
(9,000 mi), whichever occurs first.
TOP TIER Detergent Gasoline and
ACDelco Fuel System Treatment
Plus−Gasoline will help keep your
vehicle’s engine fuel deposit free
and performing optimally.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-12146071) - 2019 - crc - 7/27/18
262 Driving and Operating
Fuel Additives (Diesel)
TOP TIER Detergent Diesel is
highly recommended for use with
your vehicle. If your area does not
have TOP TIER Detergent Diesel,
GM recommends the use of
ACDelco Diesel Fuel Conditioner.
This will help maintain optimal
engine performance. GM does not
recommend other aftermarket diesel
additives.
If low-quality diesel is used for
refueling, GM recommends adding
ACDelco Fuel System Treatment
Plus-Diesel to help clean engine
deposits. This is available only at
your GM dealer.
Fuel for Diesel Engines
The selection of a high-quality fuel
is important for maintaining optimum
vehicle performance. Diesel fuel
should meet or exceed the minimum
requirements in the most current
versions of the local fuel standards
Do not use fuel with more than 15
ppm sulfur.Do not use a diesel blend containing
more than 20% biodiesel by volume.
Caution
Use of fuel that does not comply
with the required technical
standards can lead to engine
power loss, increased wear,
or engine damage and may void
your warranty.
Some improper fuels are:
. Diesel fuel with the addition
of gasoline.
. Diesel fuel mixed with
engine oil or automatic
transmission fluid.
. Triglyceride fuels, such as
raw vegetable oil or animal
fat, in any form, including
with blends of diesel or
biodiesel.
. Marine diesel fuel and
fuel oils.
(Continued)
Caution (Continued)
.Diesel-water emulsions,
such as Aquazole.
. Aftermarket diesel fuel
additives, which contain
alcohols, organo-metallic
additives, or water
emulsifiers.
Caution
If the vehicle is accidentally
refueled with gasoline, do not
continue driving the vehicle.
Driving the vehicle will damage
the fuel system. Have the vehicle
towed to a qualified technician to
have the gasoline removed from
the tank and fuel system. Refuel
with Ultra Low Sulfur Diesel fuel.
It is also recommended to have
the fuel system flushed with Ultra
Low Sulfur Diesel, to ensure all
gasoline is removed.

GMC Terrain/Terrain Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-12146071) - 2019 - crc - 7/27/18
Index 425
Flashers, Hazard Warning . . . . . . 164
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 345Changing . . . . . . . . . . . . . . . . . . . . . 354
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 375
Fluid Automatic Transmission . . . . . . 299
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 308
Diesel Exhaust . . . . . . . . . . . . . . . . . 28
Washer . . . . . . . . . . . . . . . . . . . . . . . 307
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 165
Folding Mirrors . . . . . . . . . . . . . . . . . . 51
Folding Seatback . . . . . . . . . . . . . . . . 66
Forward Automatic Braking . . . . . 252
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 250
Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 405
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . 253
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 60
Heated and Ventilated . . . . . . . . . . 65
Front Turn Signal Lamps . . . . . . . 315
Fuel
Additives . . . . . . . . . . . . . . . . 261, 262
Biodiesel . . . . . . . . . . . . . . . . . . . . . 263 Fuel (cont'd)
Cold Weather Operation . . . . . . 264
Diesel Engines . . . . . . . . . . . . . . . 262
Economy Driving . . . . . . . . . . . . . . . 27
Filling a Portable Fuel
Container . . . . . . . . . . . . . . 272, 273
Filling the Tank . . . . . . . . . . 268, 270
Filter Replacement . . . . . . . . . . . 268
Foreign Countries . . . . . . . . . . . . 261
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 129
Low Fuel Warning Light . . . . . . . 140
Prohibited Fuels . . . . . . . . . . . . . . 261
Recommended . . . . . . . . . . . . . . . 260
Running out of Fuel . . . . . . . . . . . 267
Top Tier . . . . . . . . . . . . . . . . . . . . . . 260
Water in Fuel . . . . . . . . . . . . . . . . . 264
Fuel for Diesel Engines . . . . . . . . . 262
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 318
Fuses and Circuit Breakers . . . 318
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 321
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 323G
Garage Door Opener . . . . . . . . . . . 157Programming . . . . . . . . . . . . . . . . . 157
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 313
Gauges Engine CoolantTemperature . . . . . . . . . . . . . . . . 130
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Odometer . . . . . . . . . . . . . . . . . . . . . 128
Speedometer . . . . . . . . . . . . . . . . . 128
Tachometer . . . . . . . . . . . . . . . . . . . 128
Trip Odometer . . . . . . . . . . . . . . . . 128
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 121
General Information Service and Maintenance . . . . . 376
Towing . . . . . . . . . . . . . . . . . . . . . . . . 273
Vehicle Care . . . . . . . . . . . . . . . . . . 285
Glove Box . . . . . . . . . . . . . . . . . . . . . . 109
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 399
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 314
Hazard Warning Flashers . . . . . . . 164
Head Restraints . . . . . . . . . . . . . . . . . 58
HeadlampsAiming . . . . . . . . . . . . . . . . . . . . . . . . 314