Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
290 Driving and Operating
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 0290.
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.
Filling the Tank
An arrow on the fuel gauge
indicates which side of the vehicle
the fuel door is on. See
Fuel Gauge
0 111.
{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.
. Turn off the engine when
refueling.
(Continued)
Buick Encore GX Owner Manual (GMNA-Localizing-U.S./Canada/Mexico-
14018934) - 2020 - CRC - 2/27/20
Index 433
Engine Air Filter Life System . . . . 314
Entry Lighting . . . . . . . . . . . . . . . . . . . 149
Equipment, Towing . . . . . . . . . . . . . 300
Event Data Recorders . . . . . . . . . . 418
Exit Lighting . . . . . . . . . . . . . . . . . . . . 149
Extended Parking . . . . . . . . . . . . . . . 246
Extender, Seat Belt . . . . . . . . . . . . . . 58
Exterior Lamp Controls . . . . . . . . . 143
Exterior Lighting BatterySaver . . . . . . . . . . . . . . . . . . . . . . . . . 150
F
Filter,Engine Air Cleaner . . . . . . . . . . . 315
Flash-to-Pass . . . . . . . . . . . . . . . . . . . 145
Flashers, Hazard Warning . . . . . . 146
Flat Tire . . . . . . . . . . . . . . . . . . . . . . . . 365 Changing . . . . . . . . . . . . . . . . . . . . . 366
Floor Mats . . . . . . . . . . . . . . . . . . . . . . 387
Fluid Automatic Transmission . . . . . . 314
Brakes . . . . . . . . . . . . . . . . . . . . . . . . 324
Washer . . . . . . . . . . . . . . . . . . . . . . . 322
Fog Lamps . . . . . . . . . . . . . . . . . . . . . 147
Folding Mirrors . . . . . . . . . . . . . . . . . . 31
Folding Seatback . . . . . . . . . . . . . . . . 48
Forward Collision Alert (FCA) System . . . . . . . . . . . . . . . . . 278 Frequency Statement
Radio . . . . . . . . . . . . . . . . . . . . . . . . . 416
Front Fog Lamp Light . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Front Pedestrian Braking (FPB) System . . . . . . . . . . . . . . . . . 282
Front Seats
Adjustment . . . . . . . . . . . . . . . . . . . . . 42
Heated . . . . . . . . . . . . . . . . . . . . . . . . . 48
Fuel Additives . . . . . . . . . . . . . . . . . . . . . 290
Economy, Driving for Better . . . 225
Filling a Portable Fuel
Container . . . . . . . . . . . . . . . . . . . 292
Filling the Tank . . . . . . . . . . . . . . . 290
Foreign Countries . . . . . . . . . . . . 290
Gauge . . . . . . . . . . . . . . . . . . . . . . . . . 111
Low Fuel Warning Light . . . . . . . 122
Prohibited Fuels . . . . . . . . . . . . . . 290
Recommended . . . . . . . . . . . . . . . 289
Top Tier . . . . . . . . . . . . . . . . . . . . . . 289
Fuses Engine Compartment FuseBlock . . . . . . . . . . . . . . . . . . . . . . . . 338
Fuses and Circuit Breakers . . . 338
Instrument Panel Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 341 Fuses (cont'd)
Rear Compartment Fuse
Block . . . . . . . . . . . . . . . . . . . . . . . . 343
G
Garage Door Opener . . . . . . . . . . . 140Programming . . . . . . . . . . . . . . . . . 140
Gas Strut(s) . . . . . . . . . . . . . . . . . . . . 330
Gauges
Engine CoolantTemperature . . . . . . . . . . . . . . . . .112
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Odometer . . . . . . . . . . . . . . . . . . . . . . 111
Speedometer . . . . . . . . . . . . . . . . . . 111
Tachometer . . . . . . . . . . . . . . . . . . . . 111
Trip Odometer . . . . . . . . . . . . . . . . . 111
Warning Lights and
Indicators . . . . . . . . . . . . . . . . . . . 106
General Information Service and Maintenance . . . . . 388
Towing . . . . . . . . . . . . . . . . . . . . . . . . 293
Vehicle Care . . . . . . . . . . . . . . . . . . 304
Global Positioning System (GPS) . . . . . . . . . . . . . . . . . 180
Glove Box . . . . . . . . . . . . . . . . . . . . . . . 92
GM Mobility Reimbursement Program . . . . . . . . . . . . . . . . . . . . . . . 410
