octane Hyundai Sonata 2011 Owner's Manual

13
Introduction
Your new vehicle is designed to use only
unleaded fuel having a pump octane
number ((R+M)/2) of 87 (Research
Octane Number 91) or higher.
Your new vehicle is designed to obtain
maximum performance with UNLEADED
FUEL, as well as minimize exhaust emis-
sions and spark plug fouling.
Gasoline containing alcohol andmethanolGasohol, a mixture of gasoline and
ethanol (also known as grain alcohol),
and gasoline or gasohol containing
methanol (also known as wood alcohol)
are being marketed along with or instead
of leaded or unleaded gasoline.
Do not use gasohol containing more than
10% ethanol, and do not use gasoline or
gasohol containing any methanol. Either
of these fuels may cause drivability prob-
lems and damage to the fuel system.
Discontinue using gasohol of any kind if
drivability problems occur.
Vehicle damage or drivability problems
may not be covered by the manufactur-
er’s warranty if they result from the use
of:
1. Gasohol containing more than 10% ethanol.
2. Gasoline or gasohol containing methanol.
3. Leaded fuel or leaded gasohol.
FUEL REQUIREMENTS
CAUTION
Never add any fuel system cleaning agents to the fuel tank other thanwhat has been specified. (Consult an authorized HYUNDAI dealer fordetails.)
WARNING
• Do not "top off" after the nozzle automatically shuts off when
refueling.
• Tighten the cap until it clicks, oth- erwise the Malfunction Indicator
Light “ ” will illuminate.
• Always check that the fuel cap is installed securely to prevent fuel
spillage in the event of an acci-
dent.

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