2004-2009 Hyundai Tucson SUV FEATURES OF YOUR HYUNDAI -> FUEL RECOMMENDATIONS User Manual
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FEATURES OF YOUR HYUNDAI -> FUEL RECOMMENDATIONS for Your Hyundai Tucson SUV First Generation (2004-2009)

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FEATURES OF YOUR HYUNDAI
2
B010A04O-GAT
Use Unleaded Gasoline
For Europe – For the optimal vehicle
performance, we recommend you to
use unleaded gasoline with an octane
rating of RON (Research Octane Num-
ber) 95 /AKI (Anti Knock Index) 91 or
higher.
You may use unleaded gasoline with an
octane rating of RON 91~94/AKI 87~90
but it may result in slight performance
reduction of the vehicle.
Except Europe – Unleaded gasoline
with a Pump Octane Rating of 87 (Re-
search Octane Number 91) or higher
must be used in Hyundai vehicle.
If leaded gasoline is used, it will cause
the catalytic converter to become inef-
fective and the emission control sys-
tem to malfunction.
This can also result in increased main-
tenance expense. To avoid accidental
use of leaded fuel, the large nozzle
used with leaded gasoline at service
stations can not be inserted into fuel
tank opening of Hyundai vehicle.
NOTE:
o For some countries, Hyundai ve-
hicles are designed to use leaded
gasoline. When you are going to
use leaded gasoline, ask to
Hyundai dealer whether leaded
gasoline in your vehicle is avail-
able or not.
o Octane rating of leaded gasoline
is same with unleaded one.
B010A02JM
FUEL RECOMMENDATIONS
Use Diesel
Diesel fuel
Diesel engine must be operated only on
commercially available diesel fuel that
complies with EN 590 or comparable
standard. (EN stands for "European
Norm"). Do not use marine diesel fuel,
heating oils, or non-approved fuel addi-
tives, as this will increase wear and
cause damage to the engine and fuel
system. The use of non-approved fuels
and / or fuel additives will result in a
limitation of your warranty rights.
Diesel fuel of 52 to 54 cetane is used in
Hyundai vehicle. If two types of diesel
fuel are available, use summer or winter
fuel properly according to the following
temperature conditions.
o Above -5°C (23°F) ... Summer type
diesel fuel.
o Below -5°C (23°F) ... Winter type
diesel fuel.
Watch the fuel level in the tank very
carefully : If the engine stops through
fuel failure, the circuits must be com-
pletely purged to permit restarting.
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FEATURES OF YOUR HYUNDAI
3
B010B01A-AAT
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 drive
ability problems, the use of 100% un-
leaded gasoline is recommended. Fu-
els with unspecified quantities of alco-
hol, or alcohols other than ethanol,
should not be used.
B010D01S-AAT
Do not Use Methanol
Fuels containing methanol (wood al-
cohol) should not be used in your
Hyundai. This type of fuel can reduce
vehicle performance and damage com-
ponents of the fuel system.
!
CAUTION:
Your Hyundai's New Vehicle Lim-
ited Warranty may not cover dam-
age to the fuel system and perfor-
mance problems that are caused by
the use of methanol or fuels con-
taining methanol.
CAUTION:
o Do not let any gasoline or water
enter the tank. This would make it
necessary to drain it out and to
bleed the lines to avoid jamming
the injection pump and damaging
the engine.
o In winter, in order to cut down
incidents due to freezing, paraffin
oil may be added to the fuel if the
temperature drops to below
-10°C. Never use more than 20%
paraffin oil.
!
Biodiesel
Commercially supplied biodiesel blends
of no more than 5% biodiesel, com-
monly known as "B5 biodiesel" may be
used in your vehicle if it meets EN
14214 or equivalent specifications. (EN
stands for "European Norm"). The use
of biofuels made from rapeseed methyl
ester (RME), fatty acid methyl ester
(FAME), vegetable oil methyl ester
(VME) etc. or mixing diesel with
biodiesel will cause increased wear or
damage to the engine and fuel system.
Repair or replacement of worn or dam-
aged components due to the use of non
approved fuels will not be covered by
the manufactures warranty.
CAUTION:
o Never use any fuel, whether diesel
or B5 biodiesel that fails to meet
the latest petroleum industry speci-
fication.
o Never use any fuel additives or
treatments that are not recom-
mended or approved by the ve-
hicle manufacturer.
!

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