Buick LaCrosse: Recommended Fuel - Fuel - Driving and Operating - Buick LaCrosse Owners ManualBuick LaCrosse: 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 ga ...

    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 methylcyclopen ...

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    Mode selection
    The mode selection button controls the direction of the air flow through the ventilation system. The air flow outlet port is converted as follows: Air flow is directed toward the upper body an ...

    Airbag System Components
    Airbag System Components Your airbag system includes: Two SRS (supplemental restraint system) front airbags. The driver’s airbag is stored in the center of the steering wheel; the front ...

    Rear center seatbelt on Outback
    1) Center seatbelt tongue plate 2) Connector (tongue) 3) Connector (buckle) 4) Center seatbelt buckle WARNING Fastening the seatbelt with the webbing twisted can increase the risk or severity ...