What About Gasohol?

Gasohol (a mixture of 90% unleaded gasoline and 10% ethanol or grain alcohol) may be used in your Hyundai. However, if your engine develops driveability problems, the use of 100% unleaded gasoline is recommended. Fuels with unspecified quantities of alcohol, or alcohols other than ethanol, should not be used.

    See also:

    Specified Scheduled Procedures
    These are the procedures such as inspections, adjustments and replacements that are listed in the maintenance charts starting on page 5-4. These procedures must be performed at the intervals shown ...

    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 ...

    7,500 miles (12,000 km) or 6 months
    Inspect air cleaner filter Inspect vacuum hose Replace engine oil and filter (7,500 miles (12,000 km) or 12 months) ...