See also:

Power-Up
After switching the ignition key from OFF to either the ON or ACC position, or after a language change, you must wait at least fifteen seconds prior to using the system. ...

Ignition Off Operation
The power sunroof switches can be programmed to remain active for up to approximately ten minutes after the ignition switch has been turned OFF. Refer to “Electronic Vehicle Information Center ...

MMT In Gasoline
MMT is a manganese containing metallic additive that is blended into some gasoline to increase octane. Gasoline blended with MMT provides no performance advantage beyond gasoline of the same oct ...