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Responsibility
|
Environment
Exhaust emission control.
Vehicles manufactured by Porsche
demonstrate that even high-performance
sports cars can achieve moderate
fuel consumption and exhaust emission
values in their respective category.
This is achieved, on the one hand, through
the use of fuel- efficient technologies such
as auto start /stop, thermal management,
electrical system recuperation, direct fuel
injection, VarioCam Plus and, in conjunction
with optional PDK, coasting mode.
On the other hand, cataly tic converters
developed for the 911 provide efficient
emission control.
The stereo Lambda control circuitry
controls and monitors each cylinder bank
separately. For each exhaust tract,
oxygen sensors regulate the composition
of the exhaust gas, while another Lambda
sensor on each cylinder bank monitors
pollutant conversion in the respective
catalytic converter.
Fuel economy and recycling.
Intelligent lightweight construction has
been fundamental to the Porsche identit y
since 1948, for both technical and
ecological reasons. This forms the basis
for achieving low fuel consumption
values in conjunction with outstanding
performance.
On the technical side, we use a high
proportion of aluminium, magnesium,
plastics and super-high-strength sheet
steel. The materials used have been
selected for their ability to withstand
load, yet they are considerably lighter
than conventional steel. On the ecological side, all materials used
are meticulously selected. All synthetic
components are easily recyclable and each
material is labelled to facilitate its separa
-
tion for recycling. The reduction in the
number of plastic variants helps to ensure
more efficient recycling. Recycled plastics
are used where they meet our exacting
technical requirements.
In short, the 911 is around 95 %
recoverable.
In addition, Porsche uses a high propor -
tion of environmentally friendly water-
based paints. For us, environmental
protection does not begin at the end of
a vehicle’s life. It starts at the planning
and development stage.
Fuel.
All Porsche models – including the 911 –
are designed to operate on fuels with an
ethanol content of up to 10 %, e.g. ‘E10’.
Ethanol has a positive impact on the CO
2
balance since the plants grown for the
production of this biofuel also absorb
CO
2 from the atmosphere.
The release of hydrocarbons from the
fuel system has been minimised thanks,
in no small part, to the active carbon
filter and the multilayered material from
which the fuel tank is made. All fuel lines
are made from multilayered plastic, steel
or aluminium.
For fuel consumption, CO
2 emissions and efficiency class, please refer to pages 141/143.
