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:

    Seats
     SEATS WARNING: - Do not ride in a moving vehicle when the seatback is reclined. This can be dangerous. The shoulder belt will not be against your body. In an accident, you could be throw ...

    When there is no CD inserted
    Insert a CD by referring to “How to insert a CD (type A)” F5-19 / “How to insert a CD (s) (type B)” F5-19. When a CD is loaded, the player will start playback of the CD, beginning with th ...

    The laser sensor
    The upper decal describes the laser beam's classification and contains the following text: Invisible Laser radiation – Do not view directly with optical instruments (magnifiers) – Class ...