See also:

Use Unleaded Gasoline
Unleaded gasoline with a Pump Octane Rating of 87 (Research Octane Number 91) or higher must be used in your Hyundai. WARNING: o Do not "top off" after the nozzle automatically shuts o ...

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. ...

Overview
Hyundai introduced its all-new 2011 Hyundai Sonata at the 2009 Los Angeles Auto Show. This marked the North American debut of the latest version of the popular midsize sedan, introducing Hyundai's ...