oil additives Hyundai Genesis Coupe 2015 Owner's Manual

15
Introduction
Do not use methanol
Fuels containing methanol (wood
alcohol) should not be used in your
vehicle. This type of fuel can reduce
vehicle performance and damage
components of the fuel system.
Fuel Additives
HYUNDAI recommends that you use
good quality gasolines treated with
detergent additives such as TOP
TIER Detergent Gasoline, which help
prevent deposit formation in the
engine. These gasolines will help the
engine run cleaner and enhance per-
formance of the Emission Control
System. For more information on TOP
TIER Detergent Gasoline, please go
to the website (www.toptiergas.com).
For customers who do not use TOP
Tier Detergent Gasoline regularly,
and experience difficulty in starting
the engine or other fuel related
engine conditions, approved fuel
additives may be added to the gaso-
line. If TOP TIER Detergent Gasoline
is not available, HYUNDAI recom-
mends an approved fuel additive be
added to the fuel tank at every
7,500mile or every engine oil change.
Additives are available from your
authorized HYUNDAI dealer along
with information on how to use them.
Operation in foreign countries
If you are going to drive your vehicle
in another country, be sure to:
Observe all regulations regarding
registration and insurance.
Determine that acceptable fuel is
available.
CAUTION
Your New Vehicle Limited
Warranty may not cover damage
to the fuel system and any per-
formance problems that are
caused by the use of fuels con-
taining methanol.

Maintenance
8 7
NORMAL MAINTENANCE SCHEDULE
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 fre-
quency of service is determined by whichever occurs first.
*
1: Check the engine oil level and leak every 350 miles
(500 km) or before starting a long trip.
*
2: The drive belt should be replaced when cracks occur
or tension is reduced excessively.
*
3: If TOP TIER Detergent Gasoline is not available, 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.
*
4: Rear differential oil should be changed anytime they
have been submerged in water.
*
5: Fuel filter & Fuel tank air filter are considered to be
maintenance free but periodic inspection is recom-
mended for this maintenance 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 and consult an
authorized HYUNDAI dealer for details.*
6: 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.
*
7: Inspect for excessive valve noise and/or engine vibra-
tion and adjust if necessary. We recommend that the
system be checked by an authorized HYUNDAI dealer.