Lexus Does Not Recommend Gasoline Containing Mmt - Lexus 2015 RX350 Owner's Manual

6-1. Specifications

Lexus does not recommend gasoline containing MMT

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Some gasoline contains octane enhancing additive called MMT (Methylcyclopen-
tadienyl Manganese Tricarbonyl).
Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel con-
taining MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the instrument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.
NOTICE
Notice on fuel quality
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Do not use improper fuels. If improper fuels are used, the engine will be dam-
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aged.
Do not use leaded gasoline.
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Leaded gasoline can cause damage to your vehicle' s three-way catalytic convert-
ers causing the emission control system to malfunction.
Do not use gasohol other than that stated here.
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Other gasohol may cause fuel system damage or vehicle performance problems.
Using unleaded gasoline with an octane number or rating lower than that stated
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here will cause persistent heavy knocking.
At worst, this will lead to engine damage.
Fuel-related poor driveability
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If after using a different type of fuel, poor driveability is encountered (poor hot start-
ing, vaporization, engine knocking, etc.), discontinue the use of that type of fuel.
When refueling with gasohol
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Take care not to spill gasohol. It can damage your vehicle's paint.
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