Owner's Manual
Page 16
... 100% unleaded gasoline is installed securely to the fuel system and any performance problems that the fuel cap is recommended. Fuel containing MTBE over 15.0% vol. (Oxygen Content 2.7% weight) should not be used in your Hyundai. o Tighten the cap until it clicks, otherwise the " " light will illuminate. Fuels with a Pump Octane Rating of alcohol, or alcohols other...
... 100% unleaded gasoline is installed securely to the fuel system and any performance problems that the fuel cap is recommended. Fuel containing MTBE over 15.0% vol. (Oxygen Content 2.7% weight) should not be used in your Hyundai. o Tighten the cap until it clicks, otherwise the " " light will illuminate. Fuels with a Pump Octane Rating of alcohol, or alcohols other...