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:

    Control panel for 3-zone automatic climate control
    Canada only Front control panel 1 To set the temperature, left 2 To set climate control to automatic 3 To direct the airflow through the defroster vents, left 4 To defrost the windshield 5 To ...

    SNOW mode switch
    For driving or starting the vehicle on snowy roads or slippery areas, push on the SNOW mode switch. The SNOW mode indicator light will illuminate. When the SNOW mode is activated, engine out ...

    Memory storage
    Two positions for the driver’s seat, steering column and outside mirrors can be stored in the automatic drive positioner memory. Follow these procedures to use the memory system. 1. Move t ...