The following items must be serviced more frequently on cars mainly used under severe driving conditions. Refer to the chart below for the appropriate maintenance intervals.
R : Replace
I : Inspect and if necessary, adjust, correct, clean or replace
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Severe driving conditions
A : Repeatedly driving short distance of less than 8 km (5 miles) in normal temperature
or less than 16 km (10 miles) in freezing temperature
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 the heavy dust condition
F
: Driving in heavy traffic area
G : Driving on uphill, downhill, or mountain roads
repeatedly
H : Towing a trailer, or using a camper or roof rack
I : Driving
as patrol car, taxi, commercial car or vehicle towing
J : Driving over 170 km/h
(106 mile/h)
K : Frequently driving in stop-and-go conditions
Normal Maintenance Schedule (Gasoline Engine, except Europe)
Explanation of scheduled maintenance itemsHyundai Kona (OS) 2018-2025 Service Manual: Spark Plug Specifications
Specification
Item
Specification
Type
SILZKR8E8G
Gap
0.7 - 0.8 mm
(0.0275 - 0.0314 in.)
...
Hyundai Kona (OS) 2018-2025 Service Manual: Description and operation
Description
Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications
and the addition of special control components.
Modifications to the combustion chamber, intake manifold, camshaft and ignition
system consist the basic control system.
T ...