fuel additives TOYOTA YARIS 2019 Owners Manual (in English)

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YARIS SEDAN_OM_OM99S50z_(U)
2-4. Fuel and Emission
2
Before Driving
Fuel and Engine Exhaust Precautions
Vehicles with catalytic converters or oxygen sensors must use O NLY
UNLEADED FUEL, which will reduc e exhaust emissions and keep
spark plug fouling to a minimum.
This vehicle will perform best with fuel listed in the table.
*: U.S. federal law requires that octane ratings be posted on gas oline station
pumps.
Fuel with a rating lower than 87 octane (91 RON) could cause th e
emission control system to lose e ffectiveness. It could also cause
engine knocking and s erious engine damage.
Gasoline blended with oxygenates such as alcohol or ether com-
pounds are generally referred to as oxygenated fuels. The commo n
gasoline blend that can be used with your vehicle is ethanol bl ended
at no more than 10 %. Gasoline containing alcohol, such as etha nol or
methanol, may be marketed under the name “Gasohol”.
Vehicle damage and drivability problems resulting from the use of the
following may not be co vered by the warranty.
• Gasohol containing m ore than 10 % ethanol.
• Gasoline or gasohol containing methanol.
• Leaded fuel or leaded gasohol.
Fuel Requirements
FuelOctane Rating* (Anti-knock index)
Regular unleaded fuel87 [(R M)/2 method] or above (91 RON or above)
NOTICE
●USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic converter and oxygen se nsors and
will lead to deterioration of the emission control system and o r failures.
● This vehicle can only use oxygenated fuels containing no more t han 10 %
ethanol by volume. Damage to the vehicle may occur when ethanol
exceeds this recommendation, or if the gasoline contains any me thanol.
Stop using gasohol of any kind if your vehicle engine is performing poorly.
● Never add fuel system additives, otherwise the emission control system
could be damaged. Consult your Toyota dealer for details.