2022 HYUNDAI I20 ethanol

1-4
Introduction
DANGER
DANGER indicates a hazardous
situation which, if not avoided, will
result in death or serious injury.
WARNING
WARNING indicates a hazardous
situation which, if not avoided, could
result in death or serious injury.
CAUTION
CAUTION indicates a hazardous
situation which, if not avoided, could
result in minor or moderate injury.
NOTICE
NOTICE indicates a situation which,
if not avoided, could result in vehicle
damage.
FUEL REQUIREMENTS
Petrol engine
Unleaded
Your new vehicle is designed to use only
unleaded fuel having an Octane Rating
of RON (Research Octane Number) 91 /
AKI (Anti-Knock Index) 87 or higher. (Do
not use methanol blended fuels)
Your new vehicle is designed to obtain
maximum performance with UNLEADED
FUEL, as well as minimize exhaust
emissions and spark plug fouling.
CAUTION
NEVER USE LEADED FUEL. The use
of leaded fuel is detrimental to the
catalytic converter and will damage the
engine control system’s oxygen sensor
and affect emission control.
Never add any fuel system cleaning
agents to the fuel tank other than what
has been specified (We recommend
that you consult an authorized
HYUNDAI dealer for details.)
WARNING
• Do not “top off” after the nozzle
automatically shuts off when
refueling.
• Always check that the fuel cap is
installed securely to prevent fuel
spillage in the event of an accident.

1-5
01
Petrol containing alcohol and
methanol
Gasohol, a mixture of petrol and ethanol
(also known as grain alcohol), and
petrol or gasohol containing methanol
(also known as wood alcohol) are being
marketed along with or instead of leaded
or unleaded petrol.
Do not use gasohol containing more
than 10% ethanol, and do not use petrol
or gasohol containing any methanol.
Either of these fuels may cause
drivability problems and damage to the
fuel system, engine control system and
emission control system.
Discontinue using gasohol of any kind if
drivability problems occur.
Vehicle damage or driveability
problems may not be covered by the
manufacturer’s warranty if they result
from the use of:
1. Gasohol containing more than 10%
ethanol.
2. Petrol or gasohol containing methanol.
3. Leaded fuel or leaded gasohol.
CAUTION
Never use gasohol which contains
methanol. Discontinue use of any
gasohol product which impairs
drivability.
Other fuels
Using fuels such as;
- Silicone (Si) contained fuel,
- MMT (Manganese, Mn) contained fuel,
- Ferrocene (Fe) contained fuel, and
- Other metallic additives contained
fuels,
may cause vehicle and engine damage
or cause plugging, misfiring, poor
acceleration, engine stalling, catalyst
melting, abnormal corrosion, life cycle
reduction, etc.
Also, the Malfunction Indicator Lamp
(MIL) may illuminate.
NOTICE
Damage to the fuel system or
performance problem caused by the
use of these fuels may not be covered
by your New Vehicle Limited Warranty.

1-6
Introduction
Use of MTBE
HYUNDAI recommends avoiding fuels
containing MTBE (Methyl Tertiary Butyl
Ether) over 15.0% vol. (Oxygen Content
2.7% weight) in your vehicle.
Fuel containing MTBE over 15.0%
vol. (Oxygen Content 2.7% weight)
may reduce vehicle performance and
produce vapor lock or hard starting.
CAUTION
Your New Vehicle Limited Warranty
may not cover damage to the
fuel system and any performance
problems that are caused by the use
of fuels containing methanol or fuels
containing MTBE (Methyl Tertiary Butyl
Ether) over 15.0% vol. (Oxygen Content
2.7% weight.)
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, engine
control system and emission control
system.
Fuel Additives
HYUNDAI recommends that you use
unleaded petrol which has an Octane
Rating of RON (Research Octane
Number) 91 / AKI (Anti-Knock Index) 87
or higher.
For customers who do not use good
quality petrols including fuel additives
regularly, and have problems starting or
the engine does not run smoothly, one
bottle of additives added to the fuel tank
at every 10,000 km.
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.

10-34
Maintenance
Recommended engine coolant
• Use only soft (distilled) water in the
coolant mixture.
• The engine in your vehicle has
aluminum engine parts and must be
protected by an ethylene-glycol-based
coolant to prevent corrosion and
freezing.
• DO NOT USE alcohol or methanol
coolant or mix them with the specified
coolant.
• Do not use a solution that contains
more than 60% antifreeze or less than
35% antifreeze, which would reduce
the effectiveness of the solution.
For mixture percentage, refer to the
following table.
Ambient
TemperatureMixture Percentage
(volume)
Antifreeze Water
-15°C (5°F)35 65
-25°C (-13°F)40 60
-35°C (-31°F) 50 50
-45°C (-49°F) 60 40

WARNING
Radiator cap
Do not remove the radiator
cap when the engine and
radiator are hot. Scalding
hot coolant and steam
may blow out under pressure causing
serious injury.
Changing the coolant
We recommend that the coolant be
replaced by an authorized HYUNDAI
dealer.
NOTICE
Put a thick cloth or fabric around the
radiator cap before refilling the coolant
in order to prevent the coolant from
overflowing into engine parts such as
the alternator.
WARNING
Coolant
• Do not use radiator coolant or
antifreeze in the washer fluid
reservoir.
• Radiator coolant can severely
obscure visibility when sprayed on
the windshield and may cause loss
of vehicle control or damage to paint
and body trim.