Buick Encore: Fuel / Recommended Fuel

Buick Encore 2020-2023 Owner's Manual / Driving and Operating / Fuel / Recommended Fuel

Buick Encore. 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.

    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...

    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...

    Other information:

    Buick Encore 2020-2023 Owner's Manual: Maintenance Schedule


    Owner Checks and Services Check the engine oil level. See Engine Oil. Once a Month Check the tire inflation pressures. See Tire Pressure. Inspect the tires for wear. See Tire Inspection. Check the windshield washer fluid level. See Washer Fluid...

    Buick Encore 2020-2023 Owner's Manual: Replacing Seat Belt System Parts after a Crash


    Warning A crash can damage the seat belt system in the vehicle. A damaged seat belt system may not properly protect the person using it, resulting in serious injury or even death in a crash. To help make sure the seat belt systems are working properly after a crash, have them inspected and any necessary replacements made as soon as possible...

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    Vehicle Alarm System

    If equipped with an anti-theft alarm system, the indicator light, on the instrument panel near the windshield, shows the status of the system.

    Buick Encore. Vehicle Alarm System

    Off : Alarm system is disarmed.

    On Solid : Vehicle is secured during the delay to arm the system.

    Fast Flast : Vehicle is unsecured. A door, the liftgate, or the hood is open.

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