Buick Enclave: Recommended Fuel - Fuel - Driving and Operating - Buick Enclave Owner's ManualBuick Enclave: Recommended Fuel

Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible.

If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.

    Fuel
    Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline ...

    Gasoline Specifications (U.S. and Canada Only)
    At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive called methylcyclopentadie ...

    See also:

    Proximity view
    Selecting Proximity View will display a combination of three images from the front and passenger side cameras. ...

    Owner maintenance
    Any significant or sudden drop in fluid levels, or uneven tire wear, should be reported to a qualified technician without delay. In addition to the routine maintenance, a number of simple checks mu ...

    Turn signal switch
    1 Turn signal Move the lever up or down to signal the turning direction. When the turn is completed, the turn signals cancel automatically. 2 Lane change signal To indicate a lane change, ...