Hyundai i30 Owner's Manual page 359

Maintenance
NORMAL MAINTENANCE SCHEDULE - FOR GASOLINE ENGINE
The following maintenance services must be performed to ensure good emission control and performance. Keep receipts for all
vehicle emission services to protect your warranty. Where both mileage and time are shown, the frequency of service is deter-
mined by whichever occurs first.
* 1 : Inspect drive belt tensioner, idler and alternator pulley and
if necessary correct or replace.
* 2 : Check the engine oil level and leak every 500 km (350
miles) or before starting a long trip.
* 3 : Driving in outer temperature over 40 °C (104 °F) or driving
over 170 km/h (106 mile/h) must conform the severe driving
condition.
* 4 : If good quality gasolines that meet Europe Fuel standards
(EN228) or equivalents including fuel additives is not avail-
able, one bottle of additive is recommended. Additives are
available from your authorized HYUNDAI dealer along with
information on how to use them. Do not mix other additives
* 5 : For your convenience, it can be replaced prior to it's interval
when you do maintenance of other items.
* 6 : The engine oil level should be checked regularly and main-
tained properly. Operating with an insufficient amount of oil
can damage the engine, and such damage is not covered
by warranty.
7 10
* 7 : If the recommended oil and oil filter are not available,
replace engine oil and engine oil filter every 7,500 km or 6
months.
* 8 : The fuel filter is considered to be maintenance free but peri-
odic inspection is recommended for this maintenance
schedule depends on fuel quality. If there are some impor-
tant matters like fuel flow restriction, surging, loss of power,
hard starting problem etc, we recommend replacing the fuel
filter immediately regardless of maintenance schedule and
consulting with an authorized HYUNDAI dealer for details.
* 9 : When adding coolant, use only deionized 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 serious malfunction or engine damage.
* 10 : Manual transaxle fluid should be changed anytime they
have been submerged in water.
* 11 : Inspect for excessive valve noise and/or engine vibration
and adjust if necessary.