2017 CHEVROLET SUBURBAN oil additives

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
300 Driving and Operating
Do not use any other additives with
an E85 or FlexFuel vehicle. See
E85 or FlexFuel0300.
Fuel Additives
To keep fuel systems clean, TOP
TIER Detergent Gasoline is
recommended. See Fuel0298.
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
For a heavy-duty Suburban, see the
Suburban Heavy-Duty Package
supplement.
Vehicles marked as “E85”or
FlexFuel can use either unleaded
gasoline or ethanol fuel containing
up to 85% ethanol (E85). All other vehicles should use only the
unleaded gasoline as described in
Fuel
0298.
The use of E85 or FlexFuel is
encouraged when the vehicle is
designed to use it. E85 or FlexFuel
is made from renewable sources.
Many fuel stations will not have an
85% ethanol fuel (E85) pump
available. Those stations that do
have E85 should have a label
indicating the FlexFuel ethanol
content. Do not use the fuel if the
ethanol content is greater than 85%.
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 0301.
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.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
Vehicle Care 327
Selecting the Right Engine Oil
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade.
SeeRecommended Fluids and
Lubricants 0421.
Specification
Ask for and use 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. See
www.gmdexos.com.
Caution
Failure 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.
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
include engine revolutions, engine
temperature, and miles driven.
Based on driving conditions, the
mileage at which an oil change is
indicated can vary considerably. For
the oil life system to work properly,
the system must be reset every time
the oil is changed.

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
334 Vehicle Care
Warning (Continued)
With plain water or the wrong
mixture, the engine could get too
hot but you would not get the
overheat warning. The engine
could catch fire and you or others
could be burned. Use a 50/
50 mixture of clean, drinkable
water and DEX-COOL coolant.
Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
coolant. If using this mixture,
nothing else needs to be added.
This mixture:
. Gives freezing protection down
to−37 °C (−34 °F), outside
temperature.
. Gives boiling protection up to
129 °C (265 °F), engine
temperature.
. Protects against rust and
corrosion.
. Will not damage aluminum parts.
. Helps keep the proper engine
temperature.
Caution
If improper coolant mixture,
inhibitors, or additives are used in
the vehicle cooling system, the
engine could overheat and be
damaged. Too much water in the
mixture can freeze and crack
engine cooling parts. The repairs
would not be covered by the
vehicle warranty. Use only the
proper mixture of engine coolant
for the cooling system. See
Recommended Fluids and
Lubricants 0421.
Never dispose of engine coolant by
putting it in the trash, or by pouring
it on the ground, or into sewers,
streams, or bodies of water. Have
the coolant changed by an
authorized service center, familiar
with legal requirements regarding
used coolant disposal. This will help
protect the environment and your
health.
Checking Coolant
The coolant surge tank is in the
engine compartment on the
passenger side of the vehicle. See
Engine Compartment
Overview 0323.
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, wait until it cools down. The
coolant level should be at or above

Chevrolet Tahoe/Suburban Owner Manual (GMNA-Localizing-U.S./Canada/
Mexico-9955986) - 2017 - crc - 7/5/16
Index 457
FlexFuelE85 . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 409
Fluid Automatic Transmission . . . . . . 328
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 339
Four-Wheel DriveTransfer Case . . . . . . . . . . . . . . . 267
Power Steering . . . . . . . . . . . . . . . 338
Washer . . . . . . . . . . . . . . . . . . . . . . . 338
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 194
Bulb Replacement . . . . . . . . . . . . 348
Folding Mirrors . . . . . . . . . . . . . . . . . . 58
Forward Automatic Braking . . . . . 293
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 291
Four-Wheel Drive . . . . . . . . . . 267, 341
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 439
Front Axle . . . . . . . . . . . . . . . . . . . . . . 341
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 157
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 67
Heated and Ventilated . . . . . . . . . . 72
Front Turn Signal Lamps . . . . . . . 348
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 Additives . . . . . . . . . . . . . . . . . . . . . 300 Fuel (cont'd)
Economy Driving . . . . . . . . . . . . . . . 30
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 302
Filling the Tank . . . . . . . . . . . . . . . 301
Foreign Countries . . . . . . . . . . . . 299
Gauge . . . . . . . . . . . . . . . . . . . . . . . . 145
Low Fuel Warning Light . . . . . . . 156
Management, Active . . . . . . . . . . 261
Requirements, California . . . . . 299
System Messages . . . . . . . . . . . . 170
Full-Size Spare Tire . . . . . . . . . . . . 392
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . 351 Engine Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 352
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . 356, 359
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 361
G
Garage Door Opener . . . . . . . . . . . 185Programming . . . . . . . . . . . . . . . . . 185
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . 147
Engine Oil Pressure . . . . . . . . . . 146
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Odometer . . . . . . . . . . . . . . . . . . . . . 145 Gauges (cont'd)
Speedometer . . . . . . . . . . . . . . . . . 145
Tachometer . . . . . . . . . . . . . . . . . . . 145
Trip Odometer . . . . . . . . . . . . . . . . 145
Voltmeter . . . . . . . . . . . . . . . . . . . . . 148
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 140
General Information Service and Maintenance . . . . . .411
Towing . . . . . . . . . . . . . . . . . . . . . . . . 303
Vehicle Care . . . . . . . . . . . . . . . . . . 320
Glass Replacement . . . . . . . . . . . . . 346
Glove Box . . . . . . . . . . . . . . . . . . . . . . 125
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 433
H
Halogen Bulbs . . . . . . . . . . . . . . . . . . 347
Hazard Warning Flashers . . . . . . . 193
Head Restraints . . . . . . . . . . . . . . . . . 66
Head-up Display . . . . . . . . . . . . . . . . 162
Headlamps . . . . . . . . . . . . . . . . . . . . . 348Aiming . . . . . . . . . . . . . . . . . . . . . . . . 347
Automatic . . . . . . . . . . . . . . . . . . . . . 192
Bulb Replacement . . . . . . . . . . . . 347
Daytime RunningLamps (DRL) . . . . . . . . . . . . . . . . 192
Flash-to-Pass . . . . . . . . . . . . . . . . . 191