fuel additives CHEVROLET SILVERADO 2019 Owner's Manual

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
198 Driving and Operating
Fuel
Top Tier Fuel . . . . . . . . . . . . . . . . . 272
Recommended Fuel (Except6.2L V8 Engine) . . . . . . . . . . . . . 272
Recommended Fuel (6.2L V8 Engine) . . . . . . . . . . . . . . . . . . 272
Prohibited Fuels . . . . . . . . . . . . . . 273
Fuels in Foreign Countries . . . 273
Fuel Additives . . . . . . . . . . . . . . . . 273
E85 or FlexFuel . . . . . . . . . . . . . . 273
Filling the Tank . . . . . . . . . . . . . . . 274
Filling a Portable Fuel Container . . . . . . . . . . . . . . . . . . . 276
Trailer Towing
General TowingInformation . . . . . . . . . . . . . . . . . . 277
Driving Characteristics and
Towing Tips . . . . . . . . . . . . . . . . . 277
Trailer Towing . . . . . . . . . . . . . . . . 282
Towing Equipment . . . . . . . . . . . . 286
Trailer Sway Control (TSC) . . . 295
Trailering App . . . . . . . . . . . . . . . . 297
Conversions and Add-Ons
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . 307
Adding a Snow Plow or Similar Equipment . . . . . . . . . . . . . . . . . . 308
Pickup Conversion to
Chassis Cab . . . . . . . . . . . . . . . . 311
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, keep
your eyes on the road, keep your
hands on the steering wheel, and
focus your attention on driving.
. 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.

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Driving and Operating 273
Premium unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 93 is
highly recommended for best
performance and fuel economy.
Unleaded gasoline with an octane
rated as low as 87 can be used.
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
Caution
Do not use fuels with any of the
following conditions; doing so
may damage the vehicle and void
its warranty:(Continued)
Caution (Continued)
.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.
. 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 0273.
Fuel Additives
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.
E85 or FlexFuel
Vehicles with a yellow fuel sticker
on the fuel door can use either
unleaded gasoline or fuel containing

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
274 Driving and Operating
up to 85% ethanol (E85). All other
vehicles should use only the
unleaded gasoline as described in
Recommended Fuel (Except 6.2L
V8 Engine)0272 or
Recommended Fuel (6.2L
V8 Engine) 0272.
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 fuel 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. The starting characteristics of E85
or FlexFuel make it unsuitable for
use when temperatures fall below
−18 °C (0 °F). Use gasoline or add
gasoline to the E85 or FlexFuel.
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 0274.
The only GM approved aftermarket
additive is ACDelco Fuel System
Treatment Plus-FlexFuel. Follow the
instructions on the bottle for proper
use. This product is available at
your GM dealer.
Caution
Some additives are not
compatible with E85 or FlexFuel
and can harm the vehicle's fuel
system. Use only additives
approved by GM for E85 or
FlexFuel vehicles. Damage
caused by unapproved 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
If the vehicle has a diesel engine,
see the Duramax diesel
supplement.
{Warning
Fuel vapors and fuel fires burn
violently and can cause injury or
death.
Follow these guidelines: . To help avoid injuries to you
and others, read and follow
all the instructions on the
fuel pump island.
(Continued)

Chevrolet Silverado Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
1500-11698642) - 2019 - CRC - 2/20/19
Index 465
F
FanEngine . . . . . . . . . . . . . . . . . . . . . . . . 334
Features Memory . . . . . . . . . . . . . . . . . . . . . . . . . 13
Filter, Engine Air Cleaner . . . . . . . . . . . 327
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 180
Flashers, Hazard Warning . . . . . . 181
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 385 Changing . . . . . . . . . . . . . . . . . . . . . 387
FlexFuel E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Floor Console Storage . . . . . . . . . . 127
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 413
Fluid
Automatic Transmission . . . . . . 326
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 337
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 236
Washer . . . . . . . . . . . . . . . . . . . . . . . 335
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 182
Folding Mirrors . . . . . . . . . . . . . . . . . . 56
Forward Automatic Braking . . . . . 264
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 261
Four-Wheel Drive . . . . . . . . . . 236, 341
Four-Wheel-Drive Light . . . . . . . . . 154 Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 445
Front Axle . . . . . . . . . . . . . . . . . . . . . . 341
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . 265
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 69
Heated and Ventilated . . . . . . . . . . 75
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 273
Economy Driving . . . . . . . . . . . . . . . 30
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 276
Filling the Tank . . . . . . . . . . . . . . . 274
Foreign Countries . . . . . . . . . . . . 273
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 144
Low Fuel Warning Light . . . . . . . 158
Management, Active . . . . . . . . . . 228
Prohibited Fuels . . . . . . . . . . . . . . 273
Recommended . . . . . . . . . . . . . . . 272
Top Tier . . . . . . . . . . . . . . . . . . . . . . 272
Full-Size Spare Tire . . . . . . . . . . . . 395
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 352
Fuses and Circuit Breakers . . . 351 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 355, 358
G
Garage Door Opener . . . . . . . . . . . 173Programming . . . . . . . . . . . . . . . . . 173
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 346
Gauges Engine Coolant
Temperature . . . . . . . . . . . . . . . . 146
Engine Oil Pressure . . . . . . . . . . 145
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Odometer . . . . . . . . . . . . . . . . . . . . . 144
Speedometer . . . . . . . . . . . . . . . . . 143
Tachometer . . . . . . . . . . . . . . . . . . . 144
Trip Odometer . . . . . . . . . . . . . . . . 144
Voltmeter . . . . . . . . . . . . . . . . . . . . . 147
Warning Lights and Indicators . . . . . . . . . . . . . . . . . . . 138
General Information Service and Maintenance . . . . . 415
Towing . . . . . . . . . . . . . . . . . . . . . . . . 277
Vehicle Care . . . . . . . . . . . . . . . . . . 313
Glass Replacement . . . . . . . . . . . . . 346
Glove Box . . . . . . . . . . . . . . . . . . . . . . 125
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 439