Get Maintenance -> Engine Coolant Guide for Hyundai Tucson SUV 2020

ENGINE COOLANT

The high-pressure cooling system

has a reservoir filled with year-round

antifreeze coolant. The reservoir is

filled at the factory.

Replace any swollen or deteriorated

hoses.

The coolant level should be filled

between the MAX and MIN 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 bring

the level to the MAX mark, but do not

overfill. If frequent additions are

required, see an authorized

HYUNDAI dealer for a cooling sys-

tem inspection.

Checking the Engine Coolant

Level

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 cli-

mate.

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Check the condition and connections

of all cooling system hoses and

heater hoses.

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Maintenance

WARNING

Never remove the

engine coolant reser-

The electric motor for

the cooling fan may

Make sure the coolant cap is

properly closed after refilling

coolant. Otherwise the engine

could be overheated while driv-

ing.

voir tank/radiator cap

continue to operate

or the drain plug

while the engine and

or start up when the

engine is not running

radiator are hot. Hot coolant

and steam may blow out under

pressure, causing serious

injury.

and can cause serious injury.

Keep hands, clothing and tools

away from the rotating fan

blades of the cooling fan.

■ Engine room front view

Turn the engine off and wait

until the engine cools down.

Use extreme care when remov-

ing the engine coolant reservoir

tank/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 counterclock-

wise to remove it.

The electric motor for the cooling fan

is controlled by engine coolant tem-

perature, refrigerant pressure and

vehicle speed. As the engine coolant

temperature decreases, the electric

motor will automatically shut off. This

is a normal condition. If your vehicle

is equipped with GDI, the electric

motor for the cooling fan may begin

to operate at any time and continue

to operate until you disconnect the

negative battery cable.

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1. Check if the coolant cap label

is straight In front.

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For mixing percentage, refer to the

following table:

Recommended engine coolant

■ Engine room rear view

• When adding coolant, use only dis-

tilled (deionized) water for your

vehicle and never mix hard water in

the coolant filled at the factory.

• An improper coolant mixture can

result in severe malfunction or

engine damage.

• The engine in your vehicle has alu-

minum engine parts and must be

protected by a proper mix of ethyl-

ene-glycol with phosphate based

coolant to prevent corrosion and

freezing.

• Do not use alcohol or methanol

coolant or mix them with the spec-

ified coolant.

Mixture Percentage

Ambient

(volume)

Temperature

Antifreeze

Water

5°F (-15°C)

-13°F (-25°C)

-31°F (-35°C)

-49°F (-45°C)

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2. Make sure that the tiny pro-

trusions inside the coolant

cap should be securely inter-

locked.

Information

If in doubt about the mix ratio, a 50%

water and 50% antifreeze mix is the

easiest to mix together as it will be the

same quantity of each.

It is suitable to use for most tempera-

• Do not use a solution that contains

more than 60% antifreeze or less

than 35% antifreeze, which would

reduce the effectiveness of the

solution.

ture ranges of -31°F and higher.

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Maintenance

Changing Engine Coolant

NOTICE

Have coolant changed by an author-

ized HYUNDAI dealer according to

the Maintenance Schedule at the

beginning of this chapter.

To prevent damage to engine

parts, put a thick towel around the

coolant cap before refilling the

coolant to prevent the coolant

from overflowing into engine

parts, such as the generator.

WARNING

Do not use engine coolant or

antifreeze in the washer fluid

reservoir.

Engine coolant can severely

obscure visibility when sprayed

on the windshield and may

cause loss of vehicle control

resulting in an accident.

Engine coolant may also cause

damage to paint and body trim.

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Maintenance -> Engine Coolant for Your Hyundai Tucson SUV 2020

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