2020 BUICK ENCORE oil additives

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
180 Driving and Operating
Recommended Fuel
Use regular unleaded gasoline
meeting ASTM specification D4814
with a posted octane rating of 87—
(R+M)/2 —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.
Do not use any fuel labeled E85 or
FlexFuel. Do not use gasoline with
ethanol levels greater than 15% by
volume.
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 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.
(Continued)
Caution (Continued)
.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 0180.
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

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
194 Vehicle Care
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 5W-30 viscosity grade
engine oil. Cold Temperature
Operation: In an area of extreme
cold, where the temperature falls
below −29 °C (−20 °F), an SAE
0W-30 oil may be used. 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
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.
When the system has calculated
that oil life has been diminished, it
indicates that an oil change is
necessary. A CHANGE ENGINE
OIL SOON DIC message comes on.
Change the oil as soon as possible
within the next 1 000 km (600 mi).
It is possible that, if driving under
the best conditions, the oil life

Buick Encore Owner Manual (GMNA-Localizing-U.S./Canada-13710474) -
2020 - CRC - 10/7/19
Index 305
Driving the Vehicle . . . . . . . . . . . . . . . . 2
Dual Automatic ClimateControl System . . . . . . . . . . . . . . . . 132
E
Electrical Equipment,Add-On . . . . . . . . . . . . . . . . . . . . . . . 185
Electrical System Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 213
Fuses and Circuit Breakers . . . 213
Instrument Panel Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 217
Overload . . . . . . . . . . . . . . . . . . . . . 212
Rear Compartment Fuse Block . . . . . . . . . . . . . . . . . . . . . . . . 219
Emergency
OnStar . . . . . . . . . . . . . . . . . . . . . . . 294
Engine Air Cleaner/Filter . . . . . . . . . . . . . 196
Check Light(Malfunction
Indicator) . . . . . . . . . . . . . . . 101, 103
Compartment Overview . . . . . . . 191
Coolant Temperature Gauge . . . . 98
Cooling System . . . . . . . . . . . . . . . 197
Drive Belt Routing . . . . . . . . . . . . 278
Exhaust . . . . . . . . . . . . . . . . . . . . . . 159 Engine (cont'd)
Heater . . . . . . . . . . . . . . . . . . . . . . . . 154
Oil Life System . . . . . . . . . . . . . . . 194
Oil Pressure Light . . . . . . . . . . . . 107
Overheating . . . . . . . . . . . . . . . . . . 200
Power Messages . . . . . . . . . . . . . .113
Running While Parked . . . . . . . . 159
Starting . . . . . . . . . . . . . . . . . . . . . . . 153
Entry Lighting . . . . . . . . . . . . . . . . . . . 127
Event Data Recorders . . . . . . . . . . 291
Exit Lighting . . . . . . . . . . . . . . . . . . . . 127
Extended Parking . . . . . . . . . . . . . . . 158
Extender, Seat Belt . . . . . . . . . . . . . . 49
Exterior Lamp Controls . . . . . . . . . 123
Exterior Lighting Battery Saver . . . . . . . . . . . . . . . . . . . . . . . . . 128
F
Filter,
Engine Air Cleaner . . . . . . . . . . . 196
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 124
Flashers, Hazard Warning . . . . . . 125
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 239 Changing . . . . . . . . . . . . . . . . . . . . . 240
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 259
Fluid Automatic Transmission . . . . . . 195
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 203 Fluid (cont'd)
Washer . . . . . . . . . . . . . . . . . . . . . . . 201
Fog Lamps Front . . . . . . . . . . . . . . . . . . . . . . . . . 126
Folding Mirrors . . . . . . . . . . . . . . . . . . 23
Folding Seatback . . . . . . . . . . . . . . . . 37
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 174
Frequency Statement Radio . . . . . . . . . . . . . . . . . . . . . . . . . 289
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Front Seat Armrest . . . . . . . . . . . . . . 36
Front Seats Adjustment . . . . . . . . . . . . . . . . . . . . . 31
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 180
Economy, Driving for Better . . . 140
Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 184
Filling the Tank . . . . . . . . . . 181, 182
Foreign Countries . . . . . . . . . . . . 180
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Low Fuel Warning Light . . . . . . . 108
Prohibited Fuels . . . . . . . . . . . . . . 180
Recommended . . . . . . . . . . . . . . . 180
Top Tier . . . . . . . . . . . . . . . . . . . . . . 179