2001 Acura RL 3.5 Owner's Manual

Specifications

* 1
: Including the coolant in the reserve tank and that remaining in the

engine.

Reserve tank capacity:

0.172 US gal (0.65 l , 0.143 Imp gal)

* 2 : Excluding the oil remaining in the engine.

Technical Information

Specifications

Technical Information
page 236

"' Low beam headlight bulbs are a type of high voltage discharge tube
(D2R).

page 295
page 294

DOT Tire Quality Grading (U.S. Cars)

The tires on your car meet all U.S. Federal Safety Requirements. All
tires are also graded for treadwear,
traction, and temperature perform- ance according to Department of
Transportation (DOT) standards.
The following explains these gradings.

Uniform Tire Quality Grading
Quality grades can be found where
applicable on the tire sidewall
between the tread shoulder and the
maximum section width. For
example:

Treadwear 200
Traction AA
Temperature A
DOT Quality Grades

All passenger car tires must conform to Federal Safety Requirements inaddition to these grades.
Treadwear

The treadwear grade is a compara- tive rating based on the wear rate of
the tire when tested under controlledconditions on a specified government
test course. For example, a tire
graded 150 would wear one and one-
half (1 1/2) times as well on the government course as a tire graded 100. The relative performance of
tires depends upon the actual condi- tions of their use, however, and maydepart significantly from the norm
due to variations in driving habits,
service practices and differences in
road characteristics and climate.
Traction — AA, A, B, C

The traction grades, from highest to
lowest, are AA, A, B, and C. Those
grades represent the tire's ability to stop on wet pavement as measured
under controlled conditions on specified government test surfaces
of asphalt and concrete. A tire
marked C may have poor traction
performance.
Warning: The traction grade assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.

Technical Information

DOT Tire Quality Grading (U.S. Cars)
Temperature — A, B, C
The temperature grades are A (the highest), B, and C, representing the
tire's resistance to the generation ofheat and its ability to dissipate heat
when tested under controlled conditions on a specified indoor
laboratory test wheel. Sustained high temperature can cause the materialof the tire to degenerate and reduce
tire life, and excessive temperature can lead to sudden tire failure. The
grade C corresponds to a level of
performance which all passenger car
tires must meet under the Federal Motor Vehicle Safety Standard No. 109. Grades B and A represent
higher levels of performance on the laboratory test wheel than the
minimum required by law. Warning: The temperature grade for
this tire is established for a tire that
is properly inflated and not over-
loaded. Excessive speed, underinfla- tion, or excessive loading, either separately or in combination, can
cause heat buildup and possible tire
failure.

Technical Information

Oxygenated Fuels

Some conventional gasolines are

being blended with alcohol or an
ether compound. These gasolines

are collectively referred to as

oxygenated fuels. To meet clean air
standards, some areas of the United

States and Canada use oxygenated

fuels to help reduce emissions.

If you use an oxygenated fuel, be
sure it is unleaded and meets the

minimum octane rating requirement.

Before using an oxygenated fuel, try

to confirm the fuel's contents. Some
states/provinces require this

information to be posted on the

pump.
The following are the U.S. EPA and
Canadian CGSB approved
percentages of oxygenates:
ETHANOL (ethyl or grain alcohol)
You may use gasoline containing up to 10 percent ethanol by volume.Gasoline containing ethanol may be
marketed under the name "Gasohol."
MTBE (Methyl Tertiary Butyl
Ether)
You may use gasoline containing up
to 15 percent MTBE by volume.
METHANOL (methyl or wood
alcohol)

Your vehicle was not designed to use fuel that contains methanol.Methanol can corrode metal parts in
the fuel system, and also damage
plastic and rubber components. This damage would not be covered by
your warranties. If you notice any undesirable
operating symptoms, try another
service station or switch to another
brand of gasoline.
Fuel system damage or performance
problems resulting from the use of an oxygenated fuel containing more
than the percentages of oxygenates
given above are not covered under
warranty.
Technical Information

Driving in Foreign Countries

Technical Information

If you are planning to take your
Acura outside the U.S. or Canada, contact the tourist bureaus in the
areas you will be traveling in to find
out about the availability of unleaded
gasoline with the proper octane
rating.

If unleaded gasoline is not available,
be aware that using leaded gasoline
in your Acura will affect perfor-
mance and fuel mileage, and damage
its emissions controls. It will no
longer comply with U.S. and Canadian emissions regulations, and
will be illegal to operate in North
America. To bring your car back into compliance will require the replace-
ment of several components, such as
the oxygen sensors and the three
way catalytic converter. These re- placements are not covered under
warranty.

Emissions Controls

The burning of gasoline in your car's engine produces several byproducts.
Some of these are carbon monoxide (CO), oxides of nitrogen (NOx) and
hydrocarbons (HC). Gasoline evaporating from the tank also
produces hydrocarbons. Controlling
the production of NOx, CO, and HC is important to the environment.
Under certain conditions of sunlight
and climate, NOx and HC react to
form photochemical "smog." Carbon monoxide does not contribute tosmog creation, but it is a poisonous

gas.
The Clean Air Act
The United States Clean Air Act*
sets standards for automobile
emissions. It also requires that
automobile manufacturers explain to owners how their emissions controls
work and what to do to maintain
them. This section summarizes how the emissions controls work.
Scheduled maintenance is on page 208.
* In Canada, Acura vehicles comply
with the Canadian Motor Vehicle Safety Standards (CMVSS) for
Emissions valid at the time they are

manufactured.

Crankcase Emissions Control

System

Your car has a Positive Crankcase
Ventilation System. This keeps gasses that build up in the engine'scrankcase from going into the
atmosphere. The Positive Crankcase
Ventilation valve routes them from the crankcase back to the intake
manifold. They are then drawn into
the engine and burned.
Evaporative Emissions Control

System

As gasoline evaporates in the fuel tank, an evaporative emissionscontrol canister filled with charcoaladsorbs the vapor. It is stored in this
canister while the engine is off. After
the engine is started and warmed up,
the vapor is drawn into the engine and burned during driving.
Onboard Refueling Vapor
Recovery
The Onboard Refueling Vapor Recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister filled with activated carbon. Whiledriving, the fuel vapors are drawn
into the engine and burned off.

Technical Information

Emissions Controls

Exhaust Emissions Controls
The exhaust emissions controls include four systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Three Way
Catalytic Converter. These four
systems work together to control the
engine's combustion and minimize
the amount of HC, CO, and NOx that comes out the tailpipe. The exhaust
emissions control systems are
separate from the crankcase and
evaporative emissions control
systems.

PGM-FI System

The PGM-FI System uses sequential multiport fuel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Powertrain Control Module (PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how
much fuel to inject under all operat-
ing conditions. Ignition Timing Control System
This system constantly adjusts the ignition timing, reducing the amount
of HC, CO and NOx produced.
Exhaust Gas Recirculation (EGR)

System

The Exhaust Gas Recirculation (EGR) system takes some of the
exhaust gas and routes it back into
the intake manifold. Adding exhaust
gas to the air/fuel mixture reduces
the amount of NOx produced when
the fuel is burned.
Three Way Catalytic Converter
The three way catalytic converter is in the exhaust system. Through
chemical reactions, it converts HC,CO, and NOx in the engine's exhaust
to carbon dioxide (CO2), dinitrogen (N2), and water vapor. Replacement Parts
The emissions control systems are designed and certified to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions remain low, you should use only newGenuine Acura replacement parts or
their equivalent for repairs. Using
lower quality parts may increase the emissions from your car.

Technical Information