Maintenance -> Engine coolant for Your Hyundai I10 4 Door First Generation (2007-2012)

Maintenance  
ENGINE COOLANT  
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The high-pressure cooling system has a  
reservoir filled with year-round antifreeze  
coolant. The reservoir is filled at the fac-  
tory.  
Checking the coolant level  
WARNING - Removing  
radiator cap  
Check the antifreeze protection and  
coolant level at least once a year, at the  
beginning of the winter season, and  
before traveling to a colder climate.  
• Never attempt to remove the radi-  
ator cap while the engine is oper-  
ating or hot. Doing so might lead  
to cooling system and engine  
damage and could result in seri-  
ous personal injury from escap-  
ing hot coolant or steam.  
OPA077004  
• Turn the engine off and wait until  
it cools down. Use extreme care  
when removing the radiator cap.  
Wrap a thick towel around it, and  
turn it counterclockwise slowly to  
the first stop. Step back while the  
pressure is released from the  
cooling system. When you are  
sure all the pressure has been  
released, press down on the cap,  
using a thick towel, and continue  
turning counterclockwise to  
remove it.  
Check the condition and connections of  
all cooling system hoses and heater  
hoses. Replace any swollen or deterio-  
rated hoses.  
The coolant level should be filled  
between F and L marks on the side of the  
coolant reservoir when the engine is  
cool.  
If the coolant level is low, add enough  
distilled (deionized) water to provide pro-  
tection against freezing and corrosion.  
Bring the level to F, but do not overfill. If  
frequent additions are required, see an  
authorized HYUNDAI dealer for a cooling  
system inspection.  
• Even if the engine is not operat-  
ing, do not remove the radiator  
cap or the drain plug while the  
engine and radiator are hot. Hot  
coolant and steam may still blow  
out under pressure, causing seri-  
ous injury.  
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Maintenance  
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Recommended engine coolant  
Changing the coolant  
• Use only soft (de-mineralized) water in  
the coolant mixture.  
Have coolant changed by an authorized  
HYUNDAI dealer according to the  
Maintenance Schedule at the beginning  
of this section.  
• The engine in your vehicle has alu-  
minum engine parts and must be pro-  
tected by an ethylene-glycol-based  
coolant to prevent corrosion and freez-  
ing.  
CAUTION  
Put a thick cloth around the radiator  
cap before refilling the coolant in  
order to prevent the coolant from  
overflowing into engine parts such  
as the generator.  
• DO NOT USE alcohol or methanol  
coolant or mix them with the specified  
coolant.  
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• Do not use a solution that contains  
more than 60% antifreeze or less than  
35% antifreeze, which would reduce  
the effectiveness of the solution.  
WARNING - Radiator cap  
Do not remove the radiator cap  
when the engine and radiator are  
hot. Scalding hot coolant and  
steam may blow out under pres-  
sure causing serious injury.  
WARNING - Coolant  
• Do not use radiator coolant or  
antifreeze in the washer fluid  
reservoir.  
For mixture percentage, refer to the fol-  
lowing table.  
• Radiator coolant can severely  
obscure visibility when sprayed  
on the windshield and may cause  
loss of vehicle control or damage  
to paint and body trim.  
Mixture Percentage (volume)  
Ambient  
Temperature  
Water  
Antifreeze  
-15°C (5°F)  
-25°C (-13°F)  
-35°C (-31°F)  
-45°C (-49°F)  
35  
40  
50  
60  
65  
60  
50  
40  
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