Acura 2004 NSX Owner's Manual page 107

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Break-in Period, Gasoline Type
Break-in Period
Help assure your vehicle's future
reliability and performance by paying
extra attention to how you drive
during the first 600 miles (1,000 km).
During this period:
Avoid full-throttle starts and rapid
acceleration. Do not exceed 5,500
rpm for the first 600 miles (1,000
km) of operation.
Avoid hard braking for the first
200 miles (300 km).
Do not change the oil until the
scheduled maintenance time.
You should follow these same
recommendations with an
overhauled or exchanged engine,
or when the brakes are relined.
Use of a lower octane gasoline can
cause a persistent, heavy, metallic
rapping noise in the engine that can
lead to mechanical failure.
104
Before Driving
Gasoline Type
Your Acura is designed to operate on
unleaded gasoline with a pump
octane number of 91 or higher. Use
of a lower octane gasoline can cause
occasional metallic knocking noises
in the engine and will result in
decreased engine performance.
In addition, in order to maintain good
performance, fuel economy, and
emissions control, we strongly
recommend, in areas where it is
available, the use of gasoline that
does NOT contain manganese-based
fuel additives such as MMT. Use of
gasoline with these additives may
adversely affect performance, and
cause the Malfunction Indicator
Lamp on your instrument panel to
come on.
If this happens, contact your
authorized Acura dealer for service.
For further important fuel-related
information, please refer to your
Quick Start Guide.
Some gasoline today is blended with
oxygenates such as ethanol or
MTBE. Your vehicle is designed to
operate on oxygenated gasoline
containing up to 10 percent ethanol
by volume and up to 15 percent
MTBE by volume. Do not use
gasoline containing methanol.
If your notice any undesirable
operating symptoms, try another
service station or switch to another
brand of gasoline.