Buick Encore: 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.


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...
Other information:
The doors will lock automatically when all
doors are closed, the ignition is on, and the
vehicle is shifted out of P (Park).
If a vehicle door is unlocked, and then
opened and closed, the doors will lock either
when your foot is removed from the brake
or the vehicle speed becomes faster than
13 km/h (8 mph)...
Defensive driving means “always expect the
unexpected.” The first step in driving
defensively is to wear the seat belt. See
Seat Belts.
Assume that other road users
(pedestrians, bicyclists, and other drivers)
are going to be careless and make
mistakes...