2009 Hyundai Sonata Owner's Manual - Page 15

1FEATURES OF YOUR HYUNDAI 2 FUEL RECOMMENDATIONS B010A02NF-AAT B010B01A-AAT B010D01A-AAT Use Unleaded Gasoline 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. B010C01A-AAT Do Not Use Methanol Fuels containing methanol (wood alcohol) should not be used in your Hyundai. This type of fuel can reduce vehicle performance and damage components of the fuel system. UNLEADED FUEL ONLY ! CAUTION: Use of MTBE B010A01NF-A 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 off when refueling. o Tighten the cap until it clicks, otherwise " light will illuminate. the " o Always check that the fuel cap is installed securely to prevent fuel spillage in the event of an accident. Hyundai recommends that fuels containing MTBE (Methyl Tertiary Butyl Ether) over 15.0% vol. (Oxygen Content 2.7% weight) should not be used in your Hyundai. Fuel containing MTBE over 15.0% vol. (Oxygen Content 2.7% weight) may reduce vehicle performance and produce vapor lock or hard starting. Your Hyundai's New Vehicle Limited Warranty may not cover damage to the fuel system and any performance problems that are caused by the use of fuels containing methanol or fuels containing MTBE (Methyl Tertiary Butyl Ether) over 15.0% vol. (Oxygen Content 2.7% weight.)