Lexus SC 430 2001 Owner's Manual page 339

Lexus does not recommend gasoline containing MMT
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Some gasoline contain an octane enhancing additive called MMT (Methylcyclo-
pentadienyl 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 of gasoline quality
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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 stated above.
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It will cause fuel system damage or vehicle performance problems.
Use of unleaded fuel with an octane number or rating lower than stated above
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will cause persistent heavy knocking.
If severe, 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 may cause paint damage.
6-1. Specifications
339
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