Hyundai Yeni i20 2023 Owner's Manual page 12

Foreword
Leaded (if equipped)
For some countries, your vehicle is designed to use leaded gasoline. When you are
going to use leaded gasoline, we recommend that you ask an authorized HYUNDAI
dealer.
Octane rating of leaded gasoline is same with unleaded one.
Gasoline containing alcohol and methanol
Gasohol, a mixture of gasoline and ethanol (also known as grain alcohol), and gasoline
or gasohol containing methanol (also known as wood alcohol) are being marketed
along with or instead of leaded or unleaded gasoline.
Do not use gasohol containing more than 10% ethanol, and do not use gasoline or gaso-
hol 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. Gasoline 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.
Using Fuel Additives
Using fuel additives such as:
- Silicone fuel additive
- MMT (Manganese, Mn) fuel additive
- Ferrocene (iron-based) fuel additive
- Other metallic-based fuel additives
May result in cylinder misfire, poor acceleration, engine stalling, engine plugging, heavy
knocking noise, damage to the catalyst, or abnormal corrosion, and may cause damage
to the engine resulting in a reduction in the overall life of the powertrain. The Malfunc-
tion 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.
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