Acura 2004 NSX Owner's Manual page 147

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Adding Engine Oil, Changing the Oil and Filter
The numbers on the container's label
tell you the oil's viscosity or weight.
Select the oil for your vehicle
according to this chart.
Ambient Temperature
An oil with a viscosity of 10W-30 is
preferred for optimum fuel economy
and year-round protection in your
Acura. You may use a 5W-30 oil if
the temperature in your area goes
below 32°F (0°C).
144
Maintenance
Synthetic Oil
You may use a synthetic motor oil if
it meets the same requirements
given for a conventional motor oil: it
displays the API Certification Seal
and it is the proper weight. You must
follow the oil and filter change
intervals given in the maintenance
schedule.
Engine Oil Additives
Your Acura does not require any oil
additives. Additives may adversely
affect your engine's or transmission's
performance and durability.
Changing the Oil and Filter
Always change the oil and filter
according to the recommendations in
the maintenance schedule. The oil
and filter collect contaminants that
can damage your engine if they are
not removed regularly.
Changing the oil and filter requires
special tools and access from
underneath the vehicle. The vehicle
should be raised on a service station-
type hydraulic lift for this service.
Unless you have the knowledge and
proper equipment, you should have
this maintenance done by a skilled
mechanic.
1. Run the engine until it reaches
normal operating temperature,
then shut it off.