Engine Coolant; Checking The Engine Coolant Level - Hyundai Elantra 2018 Owner's Manual

E E N N G G I I N N E E C C O O O O L L A A N N T T
The high-pressure cooling system has a
reservoir filled with year-round antifreeze
coolant. The reservoir is filled at the fac-
tory.
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.
Checking the Engine Coolant
Level
■ 1.6 T-GDI
■ 2.0 MPI
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 the F and the 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 bring the
level to the F mark, but do not overfill. If
frequent additions are required, we rec-
ommend that you see an authorized
HYUNDAI dealer for a cooling system
inspection.
Recommended engine coolant
OAD076125
• When adding coolant, use only deion-
ized water, distilled water or soft 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 dam-
age.
• The engine in your vehicle has alu-
minum engine parts and must be pro-
tected by an ethylene-glycol with phos-
phate based coolant to prevent corro-
sion and freezing.
OAD075008
• Do not use alcohol or methanol coolant
or mix them with the specified coolant.
• Do not use a solution that contains
more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.
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