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 ...

    See also:

    Disabling the passenger airbag
    WARNING: Make sure that the passengerairbag is disabled when using arearward facing child restraint on thefront passenger seat. Fitting the passenger airbagdeactivation switch WARNING: If you ne ...

    Tire specification and pressure label
     Tire specification and pressure label The tires supplied on your new vehicle are chosen to provide the best performance for normal driving. The tire label located on the driver's sid ...

    Secondary trunk lid release
    To open the trunk lid from the rear seat: (1) - Fold down the center arm rest. - Insert the mechanical key into the trunk compartment access lid lock. Fold down the trunk compartment access lid. ...