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:

    Dashboard fuse box
    Do not use a pointed object such as a screwdriver to open the cover in the dashboard. You could damage the dashboard or the cover. ► To open: pull cover 1 outwards in the direction ...

    Exterior mirrors
    1. Left mirror adjustment. 2. Right mirror adjustment. 3. Press both switches together to fold/unfold the mirrors. Note: If the mirrors are manually folded or knocked into the folded position a ...

    Fuel tank capacity
    Avoid the risk of running out of fuel and never intentionally drive the vehicle when the fuel gauge indicates that the tank is empty. When refueling your vehicle after the fuel gauge reads empty, ...