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121
YARIS_YARIS HATCHBACK_OM_OM99V59z_(U)
2-4. Fuel and Emission
2
Before Driving
Fuel and Engine Exhaust Precautions
Vehicles with catalytic converters or oxygen sensors must use ONLY
UNLEADED FUEL, which will reduce exhaust emissions and keep
spark plug fouling to a minimum.
To achieve maximum engine performance, use the specified fuel.
*
1
: U.S. federal law requires that octane ratings be posted on gas station
pumps.
Fuel with a rating lower than 87 octane (91 RON) could cause the
emission control system to lose effectiveness. It could also cause
engine knocking and serious engine damage.
Gasoline blended with oxygenates such as alcohol or ether com-
pounds are generally referred to as oxygenated fuels. The common
gasoline blend that can be used with your vehicle is ethanol blended
at no more than 10 %. Gasoline containing alcohol, such as ethanol or
methanol, may be marketed under the name “Gasohol”.
Vehicle damage and drivability problems resulting from the use of the
following may not be covered by the warranty.
• Gasohol containing more than 10 % ethanol.
• Gasoline or gasohol containing methanol.
• Leaded fuel or leaded gasohol.
Fuel Requirements
Fuel Octane Rating*
1
(Anti-knock index)
Regular unleaded
fuel
87 [(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 sensors and
will lead to deterioration of the emission control system and or failures.
● This vehicle can only use oxygenated fuels containing no more than 10 %
ethanol by volume. Damage to the vehicle may occur when ethanol
exceeds this recommendation, or if the gasoline contains any methanol.
Stop using gasohol of any kind if your vehicle engine is performing poorly.
● Never add fuel system additives other than a Toyota genuine product, oth-
erwise the emission control system could be damaged. Consult your Toy-
ota dealer for details.
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