Portable Fuel Containers - Porsche Boxster 2006 Owner's Manual

Fuels containing MMT
Some North American fuels contain an octane en-
hancing additive called methylcyclopentadienyl
manganese tricarbonyl (MMT).
If such fuels are used, your emission control sys-
tem performance may be negatively affected.
The check engine warning light on your instrument
panel may turn on.
If this occurs, Porsche recommends you stop
using fuels containing MMT.

Portable Fuel Containers

Danger!
Portable fuel containers, full or partially em-
pty, may leak causing an explosion, or result
in fire in case of an accident.
f Never carry additional fuel in portable contai-
ners in your vehicle.
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Maintenance, Car Care