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NOTE
The Mazda RX-8 requires regular
checking of the engine oil level. The
compact, high performance RENESIS
rotary engine in your vehicle consumes
a small amount of engine oil due to its
structural design. An oil pump
optimizes the amount of oil injected to
lubricate the rotor seals in the
combustion cycle. Although your
vehicle is equipped with an engine oil
level warning light and an engine oil
pressure gauge, it is best to keep the
engine oil level in the range between
full and low by checking the oil
dipstick regularly. Mazda recommends
checking the oil level at every second
fuel filling. The oil consumption of the
engine depends on engine speed and
engine load. Under extreme driving
conditions, oil consumption can be
higher.
qDashboard Illumination
Rotate the thumb wheel to adjust the
brightness of the instrument cluster and
other illuminations in the dashboard.
NOTE
lThe brightness of dashboard
illuminations (except instrument
cluster) can be adjusted when the
headlight switch is in the
or
position.
lThe brightness of the instrument
cluster illumination can be adjusted
when the headlight switch is in any
position.
Bright
Dim
Canceling the illumination dimmer
When the headlight switch is in the
or
position, the illumination of the
instrument cluster and the information
display dims (the instrument cluster
illumination color turns to red).
When driving on snowy or foggy roads,
or in other situations when the instrument
cluster or information display's visibility
is reduced due to glare from surrounding
brightness, cancel the illumination
dimmer and increase the illumination
intensity.
To cancel the illumination dimmer, rotate
the thumb wheel upward fully. You may
hear a click sound and the illumination
dimmer will be canceled (instrument
cluster illumination color turns to white).
NOTE
If the dashboard illumination switch is
kept at the illumination dimmer cancel
position, the instrument cluster and the
information display will not dim when
the headlight switch is turned to the
orposition again.
Driving Your Mazda
Instrument Cluster and Indicators
5-37
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Form No.8U58-EA-05J
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CAUTION
Don't continue driving when the
charging system warning light is
illuminated because the engine could
stop unexpectedly.
qEngine Oil Level Warning Light
This warning light indicates low engine
oil level.
If the light illuminates while driving:
1. Drive to the side of the road and park
off the right-of-way.
2. Turn off the engine and inspect the
engine oil level (page 8-13). If it's low,
add oil.
3. Check the light.
If the engine oil level warning light is
illuminated and you are unable to
immediately add engine oil, do not drive
at high speed, keep the engine speed low
and get to a location where oil can be
added as soon as possible. We recommend
an Authorized Mazda Dealer.
If the light remains illuminated even after
you add oil, have your vehicle checked at
an Authorized Mazda Dealer.
CAUTION
Don't run the engine if the oil level is
low. It could result in extensive engine
damage.
NOTE
The Mazda RX-8 requires regular
checking of the engine oil level. The
compact, high performance RENESIS
rotary engine in your vehicle consumes
a small amount of engine oil due to its
structural design. An oil pump
optimizes the amount of oil injected to
lubricate the rotor seals in the
combustion cycle. Although your
vehicle is equipped with an engine oil
level warning light and an engine oil
pressure gauge, it is best to keep the
engine oil level in the range between
full and low by checking the oil
dipstick regularly. Mazda recommends
checking the oil level at every second
fuel filling. The oil consumption of the
engine depends on engine speed and
engine load. Under extreme driving
conditions, oil consumption can be
higher.
qEngine Coolant Level Warning Light
This warning light indicates low engine
coolant level.
5-42
Driving Your Mazda
Warning/Indicator Lights and Beep Sounds
RX-8_8U58-EA-05J_Edition1 Page172
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Form No.8U58-EA-05J
Page 286 of 434

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Engine Oil
NOTE
The Mazda RX-8 requires regular
checking of the engine oil level. The
compact, high performance RENESIS
rotary engine in your vehicle consumes
a small amount of engine oil due to its
structural design. An oil pump
optimizes the amount of oil injected to
lubricate the rotor seals in the
combustion cycle. Although your
vehicle is equipped with an engine oil
level warning light and an engine oil
pressure gauge, it is best to keep the
engine oil level in the range between
full and low by checking the oil
dipstick regularly. Mazda recommends
checking the oil level at every second
fuel filling. The oil consumption of the
engine depends on engine speed and
engine load. Under extreme driving
conditions, oil consumption can be
higher.
qRecommended Oil
Use SAE 5W-20 engine oil.
Oil container labels provide important
information.
A chief contribution this type of oil makes
to fuel economy is reducing the amount of
fuel necessary to overcome engine
friction.
U.S.A. and CANADA
(ILSAC)
Only use oils“Certified For Gasoline
Engines”by the American Petroleum
Institute (API). An oil with this trademark
symbol conforms to the current engine
and emission system protection standards
and fuel economy requirements of the
International Lubricant Standardization
and Approval Committee (ILSAC),
comprised of U.S. and Japanese
automobile manufacturers.
5W-20
120 100 80
60 40
20
0 –20
50 40 30
20 10
0 –10
–20 –30
8-12
Maintenance and Care
Owner Maintenance
RX-8_8U58-EA-05J_Edition1 Page286
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NOTE
lEach mark from the F mark equates
to about 0.5 L (US 0.5 qt, Imp 0.4
qt).
There are 3 marks between L and F.
lVerify that the engine cover is
securely installed.
qChanging Engine Oil and Filter
Change engine oil and filter according to
Scheduled Maintenance (page 8-3).
Please act responsibly―protect the
environment and take used oil to a
recycling facility. Ask your dealer or a
service station for information.
WARNING
Handling Used Engine Oil:
Continuous contact with used engine
oil is dangerous. It could cause skin
cancer. Always wash with soap and
water immediately after changing oil
and filter.
Changing engine oil
WARNING
Checking or Changing Engine Oil:
Hot engine oil is dangerous. If the
engine has been running, the engine
oil becomes very hot. You could be
seriously burned. Don't check or
change the engine oil when the engine
is hot.1. Remove the engine cover.
2. Warm up the engine for a few minutes
and turn it off. Remove the oil-filler
cap.
3. Remove the drain plug and drain the
oil into a suitable container.
4. Replace the plug tightly after the oil
has thoroughly drained.
5. Fill the engine with new oil to the F
mark on the dipstick.
6. Securely reinstall the oil-filler cap.
LoosenTighten
Forward
Drain Plug
7. Start the engine and inspect around the
drain plug for leaks.
8. Turn it off and wait 5 minutes for the
oil to return to the oil pan.
8-14
Maintenance and Care
Owner Maintenance
RX-8_8U58-EA-05J_Edition1 Page288
Thursday, August 25 2005 4:59 PM
Form No.8U58-EA-05J