Introduction
1-8
Fuel Requirements
Your new vehicle is designed to obtain maximum performance with UNLEADED FUEL, as
well as minimize exhaust emissions and spark plug fouling.
Your new vehicle is designed to perform optimally using unleaded fuel having an octane
number ((R+M)/2) of 87 (Research Octane Number 91) or higher. (Do not use methanol
blended fuels)
To prevent damage to the engine and engine components, never add any fuel system
cleaning agents to the fuel tank other than what has been specified.
Consult an authorized HYUNDAI dealer for additional information.
WARNING
• Do not “top off” after the nozzle automatically shuts off when refueling.
• Always check that the fuel cap is installed securely to prevent fuel spillage in the event
of an accident.
Gasoline containing alcohol or methanol
Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol) are being
marketed along with or instead of leaded or unleaded gasoline. For example, “E15” is a
gasohol comprised of 15% ethanol and 85% gasoline.
Do not use gasohol containing more than 15% ethanol, and do not use gasoline or gasohol
containing any methanol. Either of these fuels may cause drivability problems and
damage to the fuel system, engine control system and emission control system.
Discontinue using gasohol of any kind if drivability problems occur.
“E85” fuel is an alternative fuel comprised of 85 percent ethanol and 15 percent gasoline,
and is manufactured exclusively for use in Flexible Fuel Vehicles. “E85” is not compatible
with your vehicle. Use of “E85” may result in poor engine performance and damage to
your vehicle’s engine and fuel system. Do not use fuel with an ethanol content exceeding
15 percent.
To prevent damage to your vehicle’s engine and fuel system:
• Never use gasohol which contains methanol.
• Never use gasohol containing more than 15% ethanol.
• Never use leaded fuel or leaded gasohol.
• Never use “E85” fuel.
Your New Vehicle Limited Warranty does not cover damage to the fuel system or any
performance problems caused by the use of “E85” fuel.
Hyundai_SX2_en_US.book Page 8
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