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Porsche 911 User Manual

Page 64

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· 134 ·

Fuel.

The new 911 is already designed

to operate on fuels with an

ethanol content of up to 10 %.

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. This is achieved

through an active carbon filter

and a special coating on the fuel

tank. The high-pressure section

of the fuel system is made of

stainless steel, while vapour-

carrying lines are made from

multi-layered plastic.

Noise.

The new 911 complies 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

environment: the use of fewer

consumables and replacement

parts. For full details of service

intervals, please refer to the

separate price list.

· 135 ·

The new 911 | Environment

911 Targa 4