Gasoline Quality Standards - Lexus LX 570 Owner's Manual

6-1. Specifications

Gasoline quality standards

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Automotive manufacturers in the US, Europe and Japan have developed a
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specification for fuel quality called World-Wide Fuel Charter (WWFC) that is
expected to be applied worldwide.
The WWFC consists of four categories that are based on required emission
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levels. In the US, category 4 has been adopted.
The WWFC improves air quality by lowering emissions in vehicle fleets, and
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customer satisfaction through better performance.
Lexus recommends the use of gasoline containing detergent additives
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Lexus recommends the use of gasoline that contains detergent additives to
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avoid build-up of engine deposits.
All gasoline sold in the US contains minimum detergent additives to clean and/
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or keep clean intake systems, per EPA's lowest additives concentration pro-
gram.
Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more
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information on Top Tier Detergent Gasoline and a list of marketers, please go
to the official website www.toptiergas.com.
Lexus recommends the use of cleaner burning gasoline
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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.
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