Recommendation Of The Use Of Low Emissions Gasoline; Non-Recommendation Of The Use Of Blended Gasoline; Non-Recommendation Of The Use Of Gasoline Containing Mmt; If Your Engine Knocks - Lexus RX 450H Owner's Manual

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8-1. Specifications

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-
●
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 91.
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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
(Methylcyclopentadienyl 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.
RX450h_U_OM0E023U
contains an octane
DO NOT use gasoline
containing more than
15% ethanol.
(30% ethanol)
(50% ethanol)
(85% ethanol)
enhancing additive called MMT