Buick Encore: Fuel / Recommended Fuel

Buick Encore 2020-2026 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 2020-2026 Owner's Manual: Engine Coolant Temperature Gauge

This gauge shows the engine coolant temperature. If the pointer moves toward the warning area at the high end of the gauge, the engine is too hot. This reading indicates the same thing as the warning light. It means that the engine coolant has overheated...

Buick Encore 2020-2026 Owner's Manual: Headlamp High/Low-Beam Changer

: Push the turn signal lever away from you and release, to turn the high beams on. To return to low beams, push the lever again or pull it toward you and release. This indicator light turns on in the instrument cluster when the high-beam headlamps are on...