spark plugs replace Hyundai Genesis Coupe 2016 Owner's Manuals

Driving your vehicle
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5
Use high quality ethylene gly-
col coolant
Your vehicle is delivered with high
quality ethylene glycol coolant in the
cooling system. It is the only type of
coolant that should be used because
it helps prevent corrosion in the cool-
ing system, lubricates the water
pump and prevents freezing. Be sure
to replace or replenish your coolant
in accordance with the maintenance
schedule in section 7. Before winter,
have your coolant tested to assure
that its freezing point is sufficient for
the temperatures anticipated during
the winter.
Check battery and cables
Winter puts additional burdens on
the battery system. Visually inspect
the battery and cables as described
in section 7. The level of charge in
your battery can be checked by an
authorized HYUNDAI dealer or a
service station.
Change to "winter weight" oil
if necessary
In some climates it is recommended
that a lower viscosity "winter weight"
oil be used during cold weather. See
section 8 for recommendations. If
you aren't sure what weight oil you
should use, consult an authorized
HYUNDAI dealer.
Check spark plugs and igni-
tion system
Inspect your spark plugs as
described in section 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.
WARNING- Tire chains
The use of chains may adversely affect vehicle han-
dling.
Do not exceed 20 mph (30 km/h) or the chain manufac-
turer’s recommended speed
limit, whichever is lower.
Drive carefully and avoid bumps, holes, sharp turns,
and other road hazards, which
may cause the vehicle to
bounce.
Avoid sharp turns or locked- wheel braking.
CAUTION
Chains that are the wrong size or improperly installed candamage your vehicle's brakelines, suspension, body andwheels.
Stop driving and retighten the chains any time you hear themhitting the vehicle.

719
Maintenance
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
SEVERE DRIVING CONDITIONS
A - Repeatedly driving short distance of less than 5 miles (8 km) innormal temperature or less than 10 miles (16 km) in freezing tem-
perature
B - Extensive engine idling or low speed driving for long distances
C - Driving on rough, dusty, muddy, unpaved, graveled or salt- spread roads
D - Driving in areas using salt or other corrosive materials or in very cold weather E - Driving in sandy areas
F - Driving in heavy traffic area over 90°F (32°C)
G - Driving on uphill, downhill, or mountain road
H - Towing a Trailer, or using a camper, or roof rack
I - Driving as a patrol car, taxi, other commercial use or vehicle tow-
ing
J - Driving over 106 mph (170 km/h)
K - Frequently driving in stop-and-go conditions
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 3,750 MILES (7,500 KM) OR 6 MONTHSA, B, C, D, E, F, G, H, I, J,K, L
AIR CLEANER FILTERRMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYA, B, H, I, K
AUTOMATIC TRANSMISSION FLUIDREVERY 60,000 MILES (96,000 KM)C, D, E, G, H, I, J
MANUAL TRANSMISSION FLUIDREVERY 75,000 MILES (120,000 KM)C, D, E, G, H, I, J
BRAKE/PADS, CALIPERS AND ROTORSIMORE FREQUENTLYC, D, E, F, G
REAR DISC BRAKE/PAD, PARKING BRAKEIMORE FREQUENTLYC, D, E, G, H
STEERING GEAR BOX, LINKAGE & BOOTS/
LOWER ARM BALL JOINT, UPPER ARM BALL JOINTIMORE FREQUENTLYC, D, E, F, G, H, I
DRIVE SHAFTS AND BOOTSIMORE FREQUENTLYC, D, E, F
REAR DIFFERENTIAL OIL REVERY 75,000 MILES (120,000 KM)C, E, G, H, I, J
CLIMATE CONTROL AIR FILTER
(FOR EVAPORATOR AND BLOWER UNIT)RMORE FREQUENTLYC, E
PROPELLER SHAFTIEVERY 7,500 MILES (12,000 KM) OR 6 MONTHSC, E

721
Maintenance
Air cleaner filter
A Genuine HYUNDAI air cleaner fil-
ter is recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Valve clearance
Inspect excessive valve noise and/or
engine vibration and adjust if neces-
sary. An authorized HYUNDAI dealer
should perform the operation.
Cooling system
Check cooling system components,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.
Manual transmission fluid
(if equipped)
Inspect the manual transmission
fluid according to the maintenance
schedule.
Automatic transmission fluid
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 maintenance at the
beginning of this chapter.
Brake hoses and lines
Visually check for proper installation,
chafing, cracks, deterioration and
any leakage. Replace any deteriorat-
ed or damaged parts immediately.
CAUTION
The use of a non-specified fluidcould result in transmissionmalfunction and failure.
Use only specified automatictransmission fluid. (Refer to“Recommended lubricants andcapacities” in section 8.)