Hyundai H-1 2005 Owner's Manual page 180

A translucent coolant reservoir tank is
in the engine compartment.
The coolant level in this tank should
be kept between the "L" and "F" marks
when measured while the engine is
warm and idling.
The cooling system is a closed sys-
tem and normally the loss of coolant
should be very slight. A noticeable
drop in the coolant level could indi-
cate leakage.
If this occurs, have the system
checked at an authorized HYUNDAI
dealer as soon as possible.
If the level should drop below the "L"
level on the reservoir tank, add cool-
ant.
Also, if the reservoir tank is com-
pletely empty, remove the radiator
cap and add coolant until the level
reaches the filler neck.
!
WARNING:
Do not open the reservoir tank lid
or radiator cap while the engine is
hot. The coolant system is under
pressure and any hot coolant es-
caping could cause severe burns.
G050B01A-AAT
Recommended Engine Coolant
Use a high quality ethylene-glycol
coolant in a 50/50 mix with water. The
engine coolant should be compatible
with aluminum engine parts. Addi-
tional corrosion inhibitors or additives
should not be used. The cooling sys-
tem must be maintained with the cor-
rect concentration and type of engine
coolant to prevent freezing and corro-
sion. Never allow the concentration of
antifreeze to exceed the 60% level or
go below the 35% level, or damage to
the cooling system may result. For
proper concentration when adding or
replacing the engine coolant, refer to
the following table.
Ambient Engine coolant concentration
temperature
Antifreeze
Water
°C ( °F) solution
35%
-15 (5) 65%
-25 (-13) 40% 60%
-35 (-31) 50% 50%
-45 (-49) 60% 40%
DO-IT YOURSELF MAINTENANCE
G050C01A-GAT
To Check the Coolant Level
The coolant level can be seen on the
side of the plastic coolant reservoir.
The level of the coolant should be
between the "L" and "F" lines on the
reservoir when the engine is cold. If
the level is below the "L" mark, add
engine coolant to bring it up between
"L" and "F". If the level is low, inspect
for coolant leaks and recheck the
fluid level frequently. If the level drops
again, visit your Hyundai dealer for an
inspection and diagnosis of the rea-
son.
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