Porsche Cayman User Handbook Manual page 95

Fuel economy and recycling.
At Porsche, a fundamental aspect
of design is intelligent lightweight
construction. For both economical
and ecological reasons. This
forms the basis for low fuel con-
sumption values in conjunction
with outstanding performance.
It is economical thanks to the
high proportion of aluminium cast
alloys, plastics and super high-
strength sheet steel used. This
is substantially lighter and more
stable than conventional steel. In
the Cayman models approximately
20 % of components are made
from lightweight alloys. We use
only innovative and environmen-
tally friendly components,
and each material is labelled to
facilitate its separation for
recycling. Recycled plastics are
used where they meet exacting
technical requirements. In all, the
Cayman models are approximately
95 % recyclable.
In addition, Porsche uses only
environmentally friendly water-
based paints. The Cayman is
absolutely free of asbestos, CFCs
and components manufactured
using CFCs. This is because,
here at Porsche, environmental
protection does not begin at
the end of a vehicle's life. It starts
at the planning and development
stage.
Fuel.
The Cayman models are already
designed to operate on fuels with
an ethanol content of up to 10 %.
Ethanol has a positive impact on
the CO balance since the plants
2
cultivated for the production of
this biofuel also absorb CO
the atmosphere.
The active carbon filter and
a special coating on the fuel tank
reduce the amount of hydrocar-
bons released from the fuel
system. All fuel lines are made of
aluminium, while vapour-carrying
lines are made from multi-layered
plastic.
Noise.
The Cayman models comply with
all applicable noise regulations
without any form of engine encap-
sulation. To achieve this, noises
are eliminated at source. Engine
parts are stiff, moving parts are
lightweight and tolerances are
kept to a minimum. Large-volume
silencers and resonators in the
air intake system minimise noise
further. For the entire service life
of the vehicle.
Servicing.
Long service intervals offer
clear advantages. For you: lower
costs and saved time. For the
from environment: the use of fewer
2
consumables and replacement
parts. For full details of service
intervals, please refer to the
separate price list.
Cayman | Environment
103