Buick Encore: Fuel / Recommended Fuel

Buick Encore 2020-2025 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 2020-2025 Owner's Manual: Home Page

The Home Page is where vehicle application icons are accessed. Some applications are disabled when the vehicle is moving. Swipe left or right across the display to access the pages of icons. Managing Home Page Icons Touch and hold any of the Home Page icons to enter edit mode...

Buick Encore 2020-2025 Owner's Manual: Cooling System

The cooling system allows the engine to maintain the correct working temperature. Engine Cooling Fan (Out of View) Engine Coolant Surge Tank and Pressure Cap Engine Cooling Fan (Out of View) Engine Coolant Surge Tank and Pressure Cap Warning An underhood electric fan can start up even when the engine is not running and can cause injury...