Lexus RC350 User Manual page 637

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
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build-up of engine deposits.
All gasoline sold in the U.S.A. contains minimum detergent additives to clean and/or
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keep clean intake systems, per EPA' s lowest additives concentration program.
Lexus strongly recommends the use of Top Tier Detergent Gasoline. For more informa-
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tion on Top Tier Detergent Gasoline and a list of marketers, please go to the official
website www.toptiergas.com.
Recommendation of the use of low emissions gasoline
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Gasolines containing oxygenates such as ethers and ethanol, as well as reformulated
gasolines, are available in some cities. These fuels are typically acceptable for use, pro-
viding they meet other fuel requirements.
Lexus recommends these fuels, since the formulations allow for reduced vehicle emis-
sions.
Non-recommendation of the use of blended gasoline
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Use only gasoline containing up to 15% etha-
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nol.
DO NOT use any flex-fuel or gasoline that
could contain more than 15% ethanol, includ-
ing from any pump labeled E30, E50, E85
(which are only some examples of fuel con-
taining more than 15% ethanol).
If you use gasohol in your vehicle, be sure that it has an octane rating no lower than 87.
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Lexus does not recommend the use of gasoline containing methanol.
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Non-recommendation of the use of gasoline containing MMT
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Some gasoline contains an octane enhancing additive called MMT (Methylcyclopenta-
dienyl Manganese Tricarbonyl).
Lexus does not recommend the use of gasoline that contains MMT. If fuel containing
MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instrument cluster may come on. If this happens,
contact your Lexus dealer for service.
If your engine knocks
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Consult your Lexus dealer.
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You may occasionally notice light knocking for a short time while accelerating or driv-
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ing uphill. This is normal and there is no need for concern.
RC350_RC300_RC200t_RC F_U (OM24671U)
9-1. Specifications
DO NOT use gasoline con-
taining more than 15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)
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