Buick Encore: Fuel / Fuel Additives

Buick Encore 2020-2026 Owner's Manual / Driving and Operating / Fuel / 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.

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...

Filling the Tank (Capless Fuel Fill)

An arrow on the fuel gauge indicates which side of the vehicle the fuel door is on. See Fuel Gauge. Warning Fuel vapors and fuel fires burn violently and can cause injury or death...

Other information:

Buick Encore 2020-2026 Owner's Manual: Shoulder Belt Height Adjuster

The vehicle has a shoulder belt height adjuster for the driver and front outboard passenger seating positions. Adjust the height so the shoulder portion of the belt is on the shoulder and not falling off of it. The belt should be close to, but not contacting, the neck...

Buick Encore 2020-2026 Owner's Manual: Jump Starting

Jump Starting - North America For more information about the vehicle battery, see Battery - North America. If the battery has run down, try to use another vehicle and some jumper cables to start your vehicle. Be sure to use the following steps to do it safely...