2019 GMC SIERRA DENALI oil additives
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GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/16/18
272 Driving and Operating 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 0 272 .
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
Page 324 of 472
GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-1500-11698638) - 2019 - crc - 5/15/18
Vehicle Care 323Specification
Use full synthetic engine oils that
meet the dexos1 specification.
Engine oils that have been
approved by GM as meeting the
dexos1 specification are marked
with the dexos1 approved logo.
CautionFailure to use the recommended
engine oil or equivalent can result
in engine damage not covered by
the vehicle warranty.
Viscosity Grade
Use SAE 0W-20 viscosity grade
engine oil for the 5.3L and 6.2L
V8 engines. Use SAE 5W-30 viscosity grade
engine oil for the 2.7L L4 and 4.3L
V6 engines. Cold Temperature
Operation: In an area of extreme
cold, where the temperature falls
below − 29 °C ( − 20 °F), use SAE
0W-30 oil in the 2.7L or 4.3L engine.
An oil of this viscosity grade will
provide easier cold starting for the
engine at extremely low
temperatures.
When selecting an oil of the
appropriate viscosity grade, it is
recommended to select an oil of the
correct specification. See
“ Specification ” earlier in this section.
Engine Oil Additives/Engine
Oil Flushes Do not add anything to the oil. The
recommended oils meeting the
dexos1 specification are all that is
needed for good performance and
engine protection.
Engine oil system flushes are not
recommended and could cause
engine damage not covered by the
vehicle warranty. What to Do with Used Oil Used engine oil contains certain
elements that can be unhealthy for
your skin and could even cause
cancer. Do not let used oil stay on
your skin for very long. Clean your
skin and nails with soap and water,
or a good hand cleaner. Wash or
properly dispose of clothing or rags
containing used engine oil. See the
manufacturer's warnings about the
use and disposal of oil products.
Used oil can be a threat to the
environment. If you change your
own oil, be sure to drain all the oil
from the filter before disposal. Never
dispose of oil by putting it in the
trash or pouring it on the ground,
into sewers, or into streams or
bodies of water. Recycle it by taking
it to a place that collects used oil.
Engine Oil Life System When to Change Engine Oil
This vehicle has a computer system
that indicates when to change the
engine oil and filter. This is based
on a combination of factors which
Page 464 of 472
GMC Sierra/Sierra Denali Owner Manual (GMNA-Localizing-U.S./Canada/-
Mexico-1500-11698638) - 2019 - crc - 5/16/18
Index 463F Fan
Engine . . . . . . . . . . . . . . . . . . . . . . . . 333
Features
Memory . . . . . . . . . . . . . . . . . . . . . . . . . 12
Filter,
Engine Air Cleaner . . . . . . . . . . . 326
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 179
Flashers, Hazard Warning . . . . . . 180
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 383
Changing . . . . . . . . . . . . . . . . . . . . . 385
FlexFuel
E85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
Floor Console Storage . . . . . . . . . . 127
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 411
Fluid
Automatic Transmission . . . . . . 325
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 336
Four-Wheel Drive
Transfer Case . . . . . . . . . . . . . . . 235
Washer . . . . . . . . . . . . . . . . . . . . . . . 334
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 181
Folding Mirrors . . . . . . . . . . . . . . . . . . 57
Forward Automatic Braking . . . . . 263
Forward Collision Alert
(FCA) System . . . . . . . . . . . . . . . . . 260
Four-Wheel Drive . . . . . . . . . . 235, 340
Four-Wheel-Drive Light . . . . . . . . . 153 Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 443
Front Axle . . . . . . . . . . . . . . . . . . . . . . 340
Front Fog Lamp
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 158
Front Pedestrian Braking
(FPB) System . . . . . . . . . . . . . . . . . 264
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 69
Heated and Ventilated . . . . . . . . . . 75
Fuel
Additives . . . . . . . . . . . . . . . . . . . . . 272
Economy Driving . . . . . . . . . . . . . . . 29
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 275
Filling the Tank . . . . . . . . . . . . . . . 273
Foreign Countries . . . . . . . . . . . . 272
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 143
Low Fuel Warning Light . . . . . . . 157
Management, Active . . . . . . . . . . 227
Prohibited Fuels . . . . . . . . . . . . . . 272
Recommended . . . . . . . . . . . . . . . 271
Top Tier . . . . . . . . . . . . . . . . . . . . . . 271
Full-Size Spare Tire . . . . . . . . . . . . 394
Fuses
Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 350
Fuses and Circuit Breakers . . . 350 Fuses (cont'd)
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . 354, 356
G Garage Door Opener . . . . . . . . . . . 172
Programming . . . . . . . . . . . . . . . . . 172
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 345
Gauges
Engine Coolant
Temperature . . . . . . . . . . . . . . . . 145
Engine Oil Pressure . . . . . . . . . . 144
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 143
Odometer . . . . . . . . . . . . . . . . . . . . . 142
Speedometer . . . . . . . . . . . . . . . . . 142
Tachometer . . . . . . . . . . . . . . . . . . . 143
Trip Odometer . . . . . . . . . . . . . . . . 142
Voltmeter . . . . . . . . . . . . . . . . . . . . . 146
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 137
General Information
Service and Maintenance . . . . . 413
Towing . . . . . . . . . . . . . . . . . . . . . . . . 276
Vehicle Care . . . . . . . . . . . . . . . . . . 312
Glove Box . . . . . . . . . . . . . . . . . . . . . . 125
GM Mobility Reimbursement
Program . . . . . . . . . . . . . . . . . . . . . . . 437