Toyota Lexusc Owner's Handbook Manual page 654

Oxygenates in gasoline
Lexus allows the use of oxygenate blended gasoline
where the oxygenate content is up to 10% ethanol or 15%
MTBE. If you use gasohol in your Lexus, be sure that it has
an octane rating no lower than 87.
Lexus does not recommend the use of gasoline containing
methanol.
Gasoline containing MMT
Some gasoline contain an octane enhancing additive
called MMT (Methylcyclopentadienyl
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.
NOTICE
D Do not use gasohol other than stated above. It will
cause fuel system damage or vehicle performance
problems.
D If drivability problems are encountered (poor hot
starting, vaporizing, engine knock, etc.), discontinue
its use.
D Take care not to spill gasohol during refueling.
Gasohol may cause paint damage.
Fuel tank capacity
Gasoline quality
In a very few cases, you may experience driveability problems
caused by the particular gasoline that you are using. If you
continue to have unacceptable driveability, try changing
gasoline brands. If this does not rectify your problem, then
consult your Lexus dealer.
Manganese
72.5 L (19.2 gal., 15.9 lmp.gal.)
ENGINE
635