Toyota 2014 Sienna Manual page 811

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Recommendation of the use of gasoline containing detergent additives
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Toyota recommends the use of gasoline that contains detergent additives
to avoid build-up of engine deposits.
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All gasoline sold in the U.S.A. contains minimum detergent additives to
clean and/or keep clean intake systems, EPA's lowest additives concen-
tration program.
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Toyota strongly recommends the use of Top Tier Detergent Gasoline. For
more information on Top Tier Detergent Gasoline and a list of marketers,
please go to the official website www.toptiergas.com.
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Recommendation of the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.
SIENNA_OM_OM45483U_(U)
6-1. Specifications
6
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