Break-In Hints; Engine Exhaust - Porsche 928 ST1991 Owner's Manual

Break-in hints for the first
1.000 miles/1.600 kilometers
There are no specific break-in rules for your
Porsche. However, by taking a few precau-
tions you can help extend the service life and
performance of your engine.
During the first 1.000 miles/1.600 km, all
working components of the engine adjust to
each other to a certain degree. Therefore:
Avoid full throttle starts and abrupt stops.
Change speeds frequently. Vary the throttle
load.
Do not exceed maximum engine speed of
5.000 rpm (revolutions per minute).
Do not run a cold engine at high rpm either
in Neutral or in gear.
Do not let the engine labor, especially when
driving uphill. Shift to the next proper gear in
time (use the most favorable rpm range).
There may be a slight stiffness in the steer-
ing, gearshifting or other controls during the
break-in period which will gradually disap-
pear.
Never lug the engine in high gear at low
speeds. This rule applies all the time, not
just during the break-in period.
10
Breaking-in brake pads
Brake pads do not have maximum braking
efficiency when the car is new. Therefore,
more pedal force is necessary during the
first 100 to 150 miles/150 to 250 km. This
also applies to replacement brake pads.
Breaking-in new tires
New tires do not have maximum traction.
They tend to be slippery. Break in new tires
by driving at moderate speeds during the
first 60 to 120 miles/100 to 200 km, and
longer braking distances must be antici-
pated.
Engine oil consumption
During the break-in period oil consumption
may be slightly higher than normal.
As always rate of oil consumption depends
on the quality and viscosity of oil, the speed
at which the engine is operated, the climate,
road conditions as well as the amount of di-
lution and oxidation of the lubricant.

Engine exhaust

WARNING
• Engine exhaust is dangerous if inhaled,
• Never start or let the engine run in a
closed garage. Never sit in your car for
prolonged periods with the engine on
and the car not moving.
• Although exhaust fumes from the en-
gine have many components which you
can smell, they also contain carbon
monoxide, which is a colorless and
odorless gas. Carbon monoxide can be
fatal if inhaled.
• If you smell gas fumes in the vehicle,
drive with the windows open but keep
the hatchback closed. Have the cause
immediately located and corrected.
• Because of inherent hazards, we do not
recommend transporting objects larger
than those fitting safely into the luggage
compartment. Keep
closed while driving to prevent poison-
ous exhaust gas from being drawn into
the vehicle.
• Never carry additional fuel containers in
your vehicle. Such containers, full or
partially empty, may leak, cause an exp-
losion, or result in fire in case of a colli-
sion.
the hatchback