Fuel Evaporation Control; Car Care Instructions - Porsche Cayman Owner's Manual

– Vapor lock and non-start problems, especially
at high altitude or at high temperature.
– Engine malfunction or stalling.

Fuel Evaporation Control

Fuel tank venting
The evaporation chamber and the carbon canister
prevent fuel vapors from escaping to the
atmosphere at extreme high outside
temperatures, when driving abruptly around
curves and when the car is parked at an incline or
in any other nonlevel position.
Vapor control system and storage
When the fuel tank is filled, vapors are collected in
the evaporation chamber by a vent line leading the
vapors to the carbon canister where they are
stored as long as the engine does not run.
Purge system
When the engine is running, the fuel vapors from
the canister will be mixed with fresh air from the
ambient air of the canister. This mixture will be
directed to the intake air housing by the tank vent
line, mixed with the intake air and burned during
normal combustion.
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Maintenance and Car Care

Car Care Instructions

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Please see the chapter "MEASUREMENTS ON
TEST STANDS" on page 200.
Regular Maintenance and correct care helps
to maintain the value of your car and is also
a requirement for maintaining the
manufacturers vehicle warranties.
Your authorized Porsche dealer has specially
developed car-care products from the
Porsche program available either singly or
as complete car-care sets. They will be
pleased to help you select suitable products.
Whether you use Porsche products or other
commercially available cleaning agents first
make sure of their correct application.
A Porsche that is well-cared for can look like new
for years. It all depends on the amount of care the
owner is willing to give the car.
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Chemical cleaners
WARNING
Cleaning agents may be hazardous to your health.
Most chemical cleaners are concentrates which
require dilution. High concentrations might cause
problems ranging from irritation to serious injury.
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Keep cleaning agents out of reach from
children.
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Observe all caution labels.
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Always read directions on the container before
using any product. These directions may
contain information necessary to avoid
personal injury.
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Do not use fuel, kerosene, naphtha, nail polish
remover or other volatile cleaning fluids. They
may be toxic, flammable or hazardous in other
ways. Only use spot removing fluids in a well
vented area.
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Do not clean the underside of chassis,
fenders, wheel covers, etc., without protecting
your hands and arms as you may cut yourself
on sharp-edged metal parts.
NOTICE
Risk of damage to the vehicle or property from
cleaning agents.
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Observe all caution labels.
Information
Moisture and road salt on brakes may affect
braking efficiency.
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Test the brakes after each vehicle washing.