Gasolines for cleaner air

To help contribute to cleaner air, HYUNDAI recommends that you use gasolines treated with detergent additives, which help prevent deposit formation in the engine. These gasolines will help the engine run cleaner and enhance performance of the Emission Control System.

    See also:

    Safety
    The Hyundai Sonata is one of only two cars on the market to have received both a Top Safety Pick designation from the Insurance Institute for Highway Safety and a five-star overall safety rating f ...

    Check Fuel Filler Cap Warning Light
    This warning light indicates the fuel filler cap is not tight securely. Always make sure that the fuel filler cap is tight. ...

    Under the Hood
    A 2.7-liter V-6 engine produces 181 horsepower and teams with a four-speed-automatic transmission in the GL V-6, GLS and LX models. The automatic transmission has manual-shifting capability. Used ...