Top Tier Fuel; Recommended Fuel; Prohibited Fuels - GMC Buick Encore 2022 Owner's Manual

156 Driving and Operating
Warning (Continued)
injury, or death could occur. Always keep
the windshield, headlamps, and camera
sensors clean and in good repair. Do not
use LDW in bad weather conditions.
How the System Works
LDW utilizes camera sensor installed on the
windshield ahead of the rearview mirror to
detect lane markings.
To turn LDW on and off, press
center stack. The control indicator will light
when LDW is on.
When LDW is on, is green if LDW is
available to warn of a lane departure. If the
vehicle crosses a detected lane marking
without using the turn signal in that
direction, changes to amber and flashes.
Additionally, there will be three beeps on
the right or left, depending on the lane
departure direction. LDW will not alert if the
turn signal is active in the direction of lane
departure, or if LDW detects that you are
accelerating, braking or actively steering.
Fuel

Top Tier Fuel

GM recommends the use of TOP TIER
Detergent Gasoline to keep the engine clean,
reduce engine deposits, and maintain
optimal vehicle performance. Look for the
TOP TIER Logo or see www.toptiergas.com
for a list of TOP TIER Detergent Gasoline
marketers and applicable countries.
on the

Recommended Fuel

Regular unleaded gasoline meeting ASTM
specification D4814 with a posted octane
rating (R+M)/2 of 87 or greater is
recommended. Do not use gasoline with a
posted octane rating of less than 87, as this
will result in reduced performance and
driveability. If heavy knocking is heard when
using gasoline rated at 87 or greater, the
engine needs service.
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:
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