2019 HYUNDAI SONATA HYBRID fuel additives

F8
Introduction
"E85" fuel is an alternative fuel com-
prised of 85 percent ethanol and 15
percent gasoline, and is manufac-
tured exclusively for use in Flexible
Fuel Vehicles. “E85” is not compati-
ble with your vehicle. Use of “E85”
may result in poor engine perform-
ance and damage to your vehicle's
engine and fuel system. HYUNDAIrecommends that customers do notuse fuel with an ethanol content
exceeding 15 percent.
To prevent damage to your vehi-
cle's engine and fuel system:
Never use gasohol which con-tains methanol.
Never use gasohol containing more than 15% ethanol.
Never use leaded fuel or leaded gasohol.
Never use "E85" fuel.
Your New Vehicle Limited
Warranty does not cover damage
to the fuel system or any perform-
ance problems caused by the useof "E85" fuel.Other fuels
Using fuels such as; - Silicone (Si) contained fuel,
- Ferrocene (Fe) contained fuel, and
- Other metallic additives contained fuels,
may cause damage to the engine by
plugging, misfiring, poor accelera-tion, engine stalling, catalyst melting,
abnormal corrosion, life cycle reduc-tion.
- The Malfunction Indicator Lamp (MIL) may illuminate.
Damage to the fuel system or per-
formance problem caused by the
use of these fuels may not be cov-
ered by your New Vehicle Limited
Warranty.
Gasoline containing MMT
Some gasoline contains harmful
manganese-based fuel additivessuch as
MMT (Methylcyclopentadienyl
Manganese Tricarbonyl
).
HYUNDAI does not recommend the
use of gasoline containing MMT.
This type of fuel can reduce vehicle
performance and affect your emis-sion control system. The malfunction indicator lamp on
the cluster may come on.
NOTICE
NOTICE

F9
Introduction
Fuel Additives
HYUNDAI recommends that you use good quality gasolines treated with
detergent additives such as TOP TIER
Detergent Gasoline, which help pre-
vent deposit formation in the engine.These gasolines will help the engine
run cleaner and enhance performance
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 have problems starting or the
engine does not run smoothly, addi-
tives that you can buy separately
may be added to the gasoline. If TOP
TIER Detergent Gasoline is not avail-
able, one bottle of additive added to
the fuel tank at every 12,000 km(7,500 miles) or 12 months is recom-mended.
Additives are available from your
authorized HYUNDAI dealer along
with information on how to use them.
Do not mix other additives.
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. No special break-in period is needed.
By following a few simple precautions
for the first 1,000 km (600 miles) you
may add to the performance, econo-
my and life of your vehicle.
Do not race the engine.
While driving, keep your engine
speed (rpm, or revolutions per
minute) between 2,000 rpm and
4,000 rpm.
Do not maintain a single speed for long periods of time, either fast or
slow. Varying engine speed is need-
ed to properly break-in the engine.
Avoid hard stops, except in emer- gencies, to allow the brakes to seat
properly.
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7-9
7
Maintenance
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 kilometrage and time are shown, the
frequency of service is determined by whichever occurs first.
R : Replace I : Inspect and, after Inspection, clean, adjust, repair or replace if necessary.
* 1
: 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.
* 2
: Inspect HSG belt for evidence of cuts, crocks, excessive wear or oil saturation and replace if necessary. If drive belt noise occurred, readjust
drive belt tension before replace.
* 3
: Fuel filter & Fuel tank air filter are considered to be maintenance free but periodic inspection is recommended 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.
No.DESCRIPTIONKILOMETERS X 10001224364860728496108120132144156168180192204216228240
MONTHS6121824303642485460667278849096102108114120
EMISSION CONTROL ITEMS
1ENGINE OIL AND FILTERReplace every 12,000 km or 12 months
2HSG Belt * 2IIIIIIIRIIIIIIIRIIII
3FUEL ADDITIVES * 1Add every 12,000 km or 12 months
4FUEL FILTER *3IIIII
5FUEL LINE, FUEL HOSES AND CONNECTIONSIIIII
6VACUUM HOSEInspect every 12,000 km or 6 months