2018 Hyundai Elantra GT spark plugs replace

5-113
Driving your vehicle
5
Check spark plugs and ignitionsystem
Inspect your spark plugs as
described in chapter 7 and replace
them if necessary. Also check all
ignition wiring and components to be
sure they are not cracked, worn or
damaged in any way.
Use approved window washeranti-freeze in system
To keep the water in the window
washer system from freezing, add an
approved window washer anti-freeze
solution in accordance with instruc-
tions on the container. Window wash-
er anti-freeze is available from an
authorized HYUNDAI dealer and
most auto parts outlets. Do not use
engine coolant or other types of anti-
freeze as these may damage the
paint finish.
Do not let your parking brakefreeze
Under some conditions your parking
brake can freeze in the engaged
position. This is most likely to happen
when there is an accumulation of
snow or ice around or near the rear
brakes or if the brakes are wet. If
there is a risk the parking brake may
freeze, apply it only temporarily while
you put the gear selector lever in P
and block the rear wheels so the car
cannot roll. Then release the parking
brake.
Do not let ice and snow accu-mulate underneath
Under some conditions, snow and
ice can build up under the fenders
and interfere with the steering. When
driving in severe winter conditions
where this may happen, you should
periodically check underneath the
car to be sure the movement of the
front wheels and the steering com-
ponents is not obstructed.
Don't place foreign objects ormaterials in the engine com-partment
Placement of foreign object or mate-
rials which prevent cooling of the
engine, in the engine compartment,
may cause a failure or combustion.
The manufacturer is not responsible
for the damage caused by such
placement.
To keep locks from freezing
To keep the locks from freezing,
squirt an approved de-icer fluid or
glycerine into the key opening. If a
lock is covered with ice, squirt it with
an approved de-icing fluid to remove
the ice. If the lock is frozen internally,
you may be able to thaw it out by
using a heated key. Handle the heat-
ed key with care to avoid injury.

7-8
Maintenance
I : Inspect : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from yourauthorized HYUNDAI dealer along with information on how to use them. Do not mix other additives.
*
2: The drive belt should be replaced when cracks occur or tension is reduced excessively.
*3: Fuel filter & Fuel tank air filter are considered to be maintenance free\
but periodic inspection is recommended for this mainte- nance schedule depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of
power, hard starting problem, etc. replace the fuel filter immediately regardless of maintenance schedule a\
nd consult an
authorized HYUNDAI dealer for details.
Normal Maintenance Schedule (Nu 2.0 GDI)
Months1224364860728496108120132144156168180
Miles×1,0007.51522.53037.54552.56067.57582.59097.5105112.5
Km×1,0001224364860728496108120132144156168180
Rotate tiresRotate tires every 7,500 miles
Engine oil and engine oil filterRRRRRRRRRRRRRRR
Fuel additives *1Add fuel additives every 7,500 miles or 12 months
Air cleaner filterIIRIIRIIRIIRIIR
Drive belts *2At first, inspect at 60,000 miles or 72 months.
Thereafter, inspect every 15,000 miles or 24 months
Spark plugsReplace every 97,500 miles
Vapor hose, fuel filler cap and fuel tankIIIIIII
Vacuum hoseIIIIIIIIIIIIIII
Fuel tank air filter *3IIIIIII
Fuel filter *3IIIIIII
MAINTENANCE
INTERVALS
MAINTENANCE
ITEM

7-11
7
Maintenance
Maintenance Under Severe Usage Conditions (Nu 2.0 GDI)
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEMMAINTENANCEOPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Engine oil and filterREvery 3,750 miles or 6 monthsA, B, C, D, E, F, G, H, I, J, K
Air cleaner filterRMore frequentlyC, E
Spark plugsRMore frequentlyA, B, H, I, K
Automatic transmission fluid
(if equipped)REvery 60,000 milesA, C, E, F, G, I
Dual clutch transmission fluid
(if equipped)REvery 75,000 milesC, D, E, F, G, H, I, J
Manual transmission fluid
(if equipped)REvery 75,000 milesC, D, E, F, G, H, I, J
Front brake disc/pads, calipersIMore frequentlyC, D, G, H
Rear brake shoes or disc/padsIMore frequentlyC, D, G, F

7-13
7
Maintenance
I : Inspect : Inspect and if necessary, adjust, correct, clean or replace.
R : Replace or change.
*
1: If TOP TIER Detergent Gasoline is not available, one bottle of additive is recommended. Additives are available from yourauthorized HYUNDAI dealer along with information on how to use them. Do not mix other additives.
*
2: The drive belt should be replaced when cracks occur or tension is reduced excessively.
*3: Fuel filter & Fuel tank air filter are considered to be maintenance free\
but periodic inspection is recommended for this mainte- nance schedule depends on fuel quality. If there are some important safety matters like fuel flow restriction, surging, loss of
power, hard starting problem, etc. replace the fuel filter immediately regardless of maintenance schedule a\
nd consult an
authorized HYUNDAI dealer for details.
Normal Maintenance Schedule (Gamma 1.6 T-GDI)
Months1224364860728496108120132144156168180
Miles×1,00061218243036424854606672788490
Km×1,000102030405060708090100110120130140150
Rotate tiresRotate tires every 6,000 miles
Engine oil and engine oil filterRRRRRRRRRRRRRRR
Fuel additives *1Add fuel additives every 6,000 miles or 12 months
Air cleaner filterIIRIIRIIRIIRIIR
Drive belts *2At first, inspect at 60,000 miles or 72 months.
Thereafter, inspect every 12,000 miles or 24 months
Spark plugsReplace every 42,000 miles
Intercooler, in/out hose, air intake hoseIIIIIIIIIIIIIII
Vapor hose, fuel filler cap and fuel tankIIIIIII
Vacuum hoseIIIIIIIIIIIIIII
Fuel tank air filter *3IIIIIII
MAINTENANCE INTERVALS
MAINTENANCE
ITEM

7-16
Maintenance
Maintenance Under Severe Usage Conditions (Gamma 1.6 T-GDI)
The following items must be serviced more frequently on cars normally used under severe driving conditions. Refer
to the chart below for the appropriate maintenance intervals.
R : Replace I : Inspect and, after inspection, clean, adjust, repair or replace if neces\
sary
MAINTENANCE ITEMMAINTENANCE OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
Engine oil and filterREvery 3,000 miles or 6 monthsA, B, C, D, E, F, G, H, I, J, K
Air cleaner filterRMore frequentlyC, E
Spark plugsRMore frequentlyA, B, H, I, K
Automatic transmission fluid
(if equipped)REvery 60,000 milesA, C, E, F, G, I
Dual clutch transmission fluid
(if equipped)REvery 72,000 milesC, D, E, F, G, H, I, J
Manual transmission fluid
(if equipped)REvery 72,000 milesC, D, E, F, G, H, I, J
Front brake disc/pads, calipersIMore frequentlyC, D, G, H
Rear brake shoes or disc/padsIMore frequentlyC, D, G, F

7-19
7
Maintenance
Air Cleaner Filter
A genuine HYUNDAI air cleaner filter
is recommended when the filter is
replaced.
Spark Plugs
Make sure to install new spark plugs
of the correct heat range.
Cooling System
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Engine Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Automatic Transmission Fluid
(if equipped)
Automatic transmission fluid should
not be checked under normal usage
conditions. But in severe conditions,
the fluid should be changed at an
authorized HYUNDAI dealer in
accordance to the scheduled mainte-
nance at the beginning of this chap-
ter.
Automatic transmission fluid
color is red when new.
As the vehicle is driven, the auto-
matic transmission fluid will begin
to look darker. This is a normal
condition and you should not
judge the need to replace the fluid
based upon the changed color.
Dual Clutch Transmission
Fluid (if equipped)
Inspect the dual clutch transmission
fluid according to the maintenance
schedule.
Manual Transmission Fluid
(if equipped)
Inspect the manual transmission
fluid according to the maintenance
schedule.
NOTICE
The use of a non-specified fluid
could result in transmission
malfunction and failure. Use
only the specified automatic
transmission fluid (refer to
"Recommended Lubricants and
Capacities" in chapter 8).
CAUTION