2012 Lexus CT 200h Owners Manual - Page 674

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6-1. Specifications

CT200h_U (OM76040U)

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Gasoline quality standards

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Automotive manufacturers in the U.S.A., Europe and Japan have developed a

specification for fuel quality called the World-Wide Fuel Charter (WWFC),

which is expected to be applied worldwide.

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The WWFC consists of four categories that are based on required emission

levels. In the U.S., category 4 has been adopted.

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The WWFC improves air quality by lowering emissions in vehicle fleets, and

improves customer satisfaction through better performance.

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Recommendation of the use of gasoline containing detergent additives

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Lexus recommends the use of gasoline that contains detergent additives to

avoid the build-up of engine deposits.

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All gasoline sold in the U.S.A. contains detergent additives to clean and/or keep

clean intake systems.

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Recommendation of the use of cleaner burning gasoline

Cleaner burning gasoline, including reformulated gasoline that contains oxygen-

ates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in many

areas.

Lexus recommends the use of cleaner burning gasoline and appropriately blended

reformulated gasoline. These types of gasoline provide excellent vehicle perfor-

mance, reduce vehicle emissions and improve air quality.