2021 HYUNDAI I20 oil change

10-22
Maintenance
Maintenance itemMaintenance
operationMaintenance intervals Driving condition
Engine oil and engine oil filter R Every 5,000 km (3,000 miles) or 6 monthsA, B, C, D, E,
F, G, H, I, J, K, L
Air cleaner filter R Replace more frequently depending on the condition C, E
Manual transmission fluid R Every 120,000 km (80,000 miles)C, D, E, F,
G, H, I, J, K
Steering gear rack, linkage and boots I Inspect more frequently depending on the condition C, D, E, F, G
Front suspension ball joints I Inspect more frequently depending on the condition C, D, E, F, G
Disc brakes and pads, calipers and rotors I Inspect more frequently depending on the condition C, D, E, G, H
Intelligent variable transmission fluid
(if equipped)R Every 100,000 km (60,000 miles)A, C, D, E, F,
G, H, I, K,JMAINTENANCE UNDER SEVERE USAGE CONDITIONS - DIESEL ENGINEThe 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.I : Inspect and if necessary, adjust, correct, clean or replace R : Replace or change

10-24
Maintenance
Engine oil and filter
The engine oil and filter should be
changed at the intervals specified in
the maintenance schedule. If the car
is being driven in severe conditions,
more frequent oil and filter changes are
required.
Drive belts
Inspect all drive belts for evidence
of cuts, cracks, excessive wear or oil
saturation and replace if necessary.
Drive belts should be checked
periodically for proper tension and
adjusted as necessary.
NOTICE
When you are inspecting the belt, place
the ignition switch in the LOCK/OFF or
ACC position.
Fuel filter
A clogged filter can limit the speed
at which the vehicle may be driven,
damage the emission system and cause
multiple issues such as hard starting.
If an excessive amount of foreign
matter accumulates in the fuel tank, the
filter may require replacement more
frequently.
After installing a new filter, run the
engine for several minutes, and check
for leaks at the connections.
We recommend that the fuel filter be
replaced by an authoized HYUNDAI
dealer.
Fuel lines, fuel hoses and
connections
Check the fuel lines, fuel hoses and
connections for leakage and damage.
We recommend that the fuel lines, fuel
hoses and connections be replaced by
an authoized HYUNDAI dealer.
WARNING
Diesel Engine
Never manipulate or modify the
injection system while running the
diesel engine or within 30 seconds
after turning OFF the diesel engine. The
high-pressure pump, high-pressure
pipes, rail, and injectors are still subject
to high pressure immediately after
stopping the diesel engine.
When the fuel leakage vents out, it
may cause serious body injury. Any
people, who are implanted with the
artificial cardiac pacemaker, should
remain away from the ECU or the
wiring harness by at least 30 cm,
while running the diesel engine. The
high currents of the electronic engine
control system produce a considerable
amount of magnetic fields.
Vapor hose and fuel filler cap
The vapor hose and fuel filler cap should
be inspected at those intervals specified
in the maintenance schedule. Make sure
that a new vapor hose or fuel filler cap is
correctly replaced.
EXPLANATION OF SCHEDULED MAINTENANCE ITEMS

10-29
10
WARNING
Radiator hose
Be very careful not to touch the
radiator hose when checking or adding
the engine oil as it may be hot enough
to burn you.
CAUTION
• Do not overfill the engine oil. It may
damage the engine.
• Do not spill engine oil, when adding
or changing engine oil. If you drop
the engine oil on the engine room,
wipe it off immediately.
• When you wipe the oil level gauge,
you should wipe it with a clean cloth.
When mixed with debris, it can cause
engine damage.
• Oil consumption may increase while
you break in a new vehicle and it will
be stabilized after driving 6,000 km.
• The engine oil consumption can be
affected by driving habits, climate
conditions, traffic conditions,
oil quality, etc. Therefore, it is
recommended that you inspect the
engine oil level regularly and refill it if
necessary.
• The engine oil change interval is
set for the purpose of preventing
oil deterioration, and is not related
the amount of oil consumption; so,
check and refill the amount of the oil
regularly.
Checking the engine oil level
(Diesel Engine)
OBI3090006OBI3090006
FigureRequired action
Range (A)Recommend to contact
an authorized HYUNDAI
dealer.
Range (B)Do not refill engine oil.
Range (C)You may add engine oil
as long as the oil level
does not go above the C
range.
Range (D)You must add oil and
make sure that the oil
level is in the C Range.
1. Be sure the vehicle is on level ground.
2. Start the engine and allow it to reach
normal operating temperature.
3. Turn the engine off and wait for a few
minutes (about 5 minutes) for the oil
to return to the oil pan.
4. Pull the dipstick out, wipe it clean, and
re-insert it fully.
5. Pull the dipstick out again and check
the level.
6. The level should be in the C range. If
the level is in the D range, add enough
engine oil to bring the level up to the
C range.

10-103
10
OSU2I089037OSU2I089037
Not Operating Condition
Under below condition, Diesel
Catalyst regeneration process may be
interrupted. (Engine RPM drops to idle
state)
- Engine overheat or insufficient
warm-up
- Shift lever change to D or R state
- Acceleration pedal is pressed
- Movement of Vehicle (Vehicle speed
over 0)
Service Check
If the DPF indicator change from
illuminates to blink or Engine Check
Lamp(MIL) illuminates with DPF
indicator in spite of the procedure,
please visit an authorized Hyundai dealer
and then check the Diesel Catalyst
and engine system including oil level
inspection.
Please note that the vehicle acceleration
is limited to protect engine system when
DPF indicator blinks or Engine Check
Lamp(MIL) illuminates.
OSU2I089040OSU2I089040
Operationg Self Regeneration Mode
If the self regeneration mode starts, the
message “Filter regenerationg…” and the
remaining time appears.
It takes around 30~60 minutes.
OSU2I089041OSU2I089041
Self Regeneration Mode Fail
The regeneration operation could be
canceled if the driver press the OK
button firmly while operating the self
regeneration process.

10-105
10
WARNING
If vehicle doesn’t enter regeneration
mode or if regeneration mode is
interrupted, stop the engine (Key Off),
wait for 20 seconds and retry the self
regeneration procedure.
WARNING
Self regeneration should be done
only when DPF indicator illuminates.
Frequent regeneration may cause
engine oil dilution and shortening of
Diesel Catalyst durability.
Service Check
If the DPF indicator change from
illuminates to blink or Engine Check
Lamp(MIL) illuminates with DPF
indicator in spite of the procedure,
please visit an authorized Hyundai dealer
and then check the Diesel Catalyst
and engine system including oil level
inspection.
Please note that the vehicle acceleration
is limited to protect engine system when
DPF indicator blinks or Engine Check
Lamp(MIL) illuminates.