engine oil MAZDA MODEL MX-5 2005 (in English) User Guide

Black plate (227,1)
Owner Maintenance Schedule
The owner or a qualified service technician should make these vehicle inspections at the
indicated intervals to ensure safe and dependable operation.
Bring any problem to the attention of an Authorized Mazda Dealer or qualified service
technician as soon as possible.
qWhen Refueling
lBrake and clutch fluid level (page 8-19)
lEngine coolant level (page 8-17)
lEngine oil level (page 8-15)
lWasher fluid level (page 8-24)
qAt Least Monthly
Tire inflation pressures (page 8-30)
qAt Least Twice a Year (For Example, Every Spring and Fall)
lAutomatic transmission fluid level (page 8-22)
lPower steering fluid level (page 8-21)
You can do the following scheduled maintenance items if you have some mechanical
ability and a few basic tools and if you closely follow the directions in this manual.
lAir filter (page 8-25)
lEngine coolant (page 8-17)
lEngine oil (page 8-15)
Maintenance and Care
Owner Maintenance
8-11
MX-5 Miata_8T72-EA-04G_Edition1 Page227
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (228,1)
Owner Maintenance Precautions
Improper or incomplete service may result in problems. This section gives instructions only
for items that are easy to perform.
As explained in the Introduction (page 8-2), several procedures can be done only by a
qualified service technician with special tools.
Improper owner maintenance during the warranty period may affect warranty coverage.
For details, read the separate Mazda Warranty statement provided with the vehicle. If
you're unsure about any servicing or maintenance procedure, have it done by an
Authorized Mazda Dealer.
There are strict environmental laws regarding the disposal of waste oil and fluids. Please
dispose of your waste properly and with due regard to the environment.
We recommend that you entrust the oil and fluid changes of your vehicle to an Authorized
Mazda Dealer.
WARNING
Maintenance Procedures:
Performing maintenance work on a vehicle is dangerous if not done properly. You can
be seriously injured while performing some maintenance procedures. If you lack
sufficient knowledge and experience or the proper tools and equipment to do the work,
have it done by a qualified technician.
Running the Engine:
Working under the hood with the engine running is dangerous. It becomes even more
dangerous when you wear jewelry or loose clothing.
Either can become entangled in moving parts and result in injury.
Therefore, if you must run the engine while working under the hood, make certain
that you remove all jewelry (especially rings, bracelets, watches, and necklaces) and
all neckties, scarves, and similar loose clothing before getting near the engine or
cooling fan which may turn on unexpectedly.
Electrical Fan and Engine Inspection:
Inspecting the engine with the ignition switch in the ON position is dangerous. The
cooling fan could come on unexpectedly even when the engine isn't running. You
could be seriously injured by the fan. Turn the ignition switch off and remove the key
from the ignition switch when you inspect the engine.
8-12
Maintenance and Care
Owner Maintenance
MX-5 Miata_8T72-EA-04G_Edition1 Page228
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (229,1)
Engine Compartment Overview
Fuse block
Engine oil-filler cap
Cooling system cap
Power steering fluid filler cap/dipstickAir filterClutch fluid reservoir
(Only for manual
transmission model) Automatic transmission fluid-level dipstick
(Only for automatic transmission model)
Engine oil dipstick
Brake fluid reservoir Washer fluid reservoir
(TypeA)
Engine coolant
reservoirWasher fluid reservoir (TypeB)
The battery is in the trunk
Maintenance and Care
Owner Maintenance
8-13
MX-5 Miata_8T72-EA-04G_Edition1 Page229
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (230,1)
Engine Oil
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
Except U.S.A. and CANADA
(ILSAC)
8-14
Maintenance and Care
Owner Maintenance
MX-5 Miata_8T72-EA-04G_Edition1 Page230
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (231,1)
The quality designation SL, or ILSAC
must be on the label.
5W-20
120 100 80
60 40
20
0 –20
50 40 30
20 10
0 –10
–20 –30
qInspecting Engine Oil Level
1. Be sure the vehicle is on a level
surface.
2. Warm up the engine to normal
operating temperature.
3. Turn it off and wait at least 5 minutes
for the oil to return to the oil pan.
4. Pull out the dipstick, wipe it clean, and
reinsert it fully.
Full
Low OK
5. Pull it out again and examine the level.
It's OK between L and F.
But if it's near or below L, add enough
oil to bring the level to F.
CAUTION
Don't add engine oil over F. This may
cause engine damage.
6. Make sure the O-ring on the dipstick is
positioned properly before reinserting
the dipstick.
The distance between L and F on the
dipstick represents the following:
Oil capacity
L (US qt, Imp qt) 0.8 (0.85, 0.70)
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.
Maintenance and Care
Owner Maintenance
8-15
MX-5 Miata_8T72-EA-04G_Edition1 Page231
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (232,1)
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. Warm up the engine for a few minutes
and turn it off. Remove the oil-filler
cap.
2. Remove the drain plug and drain the
oil into a suitable container.
3. Replace the drain plug washer after the
oil has thoroughly drained.
4. Reinstall the plug tightly.
5. Fill the engine with new oil to the F
mark on the dipstick.
6. Securely reinstall the oil-filler cap.
Tighten Loosen
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.Check the oil level and fill to the F mark
if necessary.
Oil capacity (General reference only,
refer to Specifications section for
capacities.)
NOTE
lThe indicated engine oil capacities
are for general reference purposes
only. When adding or changing oil,
verify the engine oil level with the
oil dipstick.
lUse only specified engine oil (page
10-4).
Changing oil filter
Because you need a special tool to
retighten the filter, an Authorized Mazda
Dealer should do the work.
8-16
Maintenance and Care
Owner Maintenance
MX-5 Miata_8T72-EA-04G_Edition1 Page232
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (237,1)
CAUTION
lClutch fluid will damage painted
surfaces. If clutch fluid does get on a
painted surface, wipe it off
immediately.
lUsing nonspecified clutch fluids
(page 10-4) will damage the system.
Mixing different fluids will also
damage it.
If the clutch system frequently
requires new fluid, it should be
inspected. Consult an Authorized
Mazda Dealer immediately.
NOTE
Low clutch fluid level may signal a
fluid leak. If you find a low fluid level,
have the clutch inspected.
Power Steering Fluid
qInspecting Power Steering Fluid
Level
CAUTION
To avoid damage to the power steering
pump, don't operate the vehicle for long
periods when the power steering fluid
level is low.
NOTE
Use specified power steering fluid
(page 10-4).
Inspect the fluid level at each engine oil
change. Add fluid if necessary; it does not
require periodic changing.
Full
Low OK
Loosen
Tighten
The level must be kept between the H and
L marks.
Visually examine the lines and hoses for
leaks and damage.
1. Park on a level surface, well off the
right-of-way, and set the parking brake
firmly.
2. Turn off the engine and allow it to
cool.
Maintenance and Care
Owner Maintenance
8-21
MX-5 Miata_8T72-EA-04G_Edition1 Page237
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (241,1)
Body Lubrication
All moving points of the body, such as
door and hood hinges and locks, should
be lubricated each time the engine oil is
changed. Use a nonfreezing lubricant on
locks during cold weather.
Make sure the hood's secondary latch
keeps the hood from opening when the
primary latch is released.
Air Filter
CAUTION
Don't drive without an air filter. This
could result in excessive engine wear.
This air filter may be cleaned with
compressed air and reused, or replaced,
depending on its condition. Unless it is
very dirty, simply shake it to remove
foreign particles. Each time you inspect it,
wipe inside the air cleaner housing with a
damp cloth.
qReplacing the Air Filter
NOTE
If the vehicle is operated in very dusty
or sandy areas, replace the filter more
often than recommended intervals.
1. Loosen the bolt and remove the hose.
Maintenance and Care
Owner Maintenance
8-25
MX-5 Miata_8T72-EA-04G_Edition1 Page241
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (286,1)
Specifications
qEngine
Item Specification
Type DOHC-16V in-line, 4-cylinder
Bore×Stroke 83.0 mm × 85.0 mm (3.3 × 3.4 in)
Displacement 1,840 ml (1,840 cc, 112.2 cu in)
Compression ratioMX-5/Miata 10.0
MAZDASPEED MX-5 9.5
qElectrical System
Item Specification
Battery Maintenance-free, 12V-32AH/5HR
Alternator 12 V - 80 A
Starter 12 V - 1.0 kW
Spark-plug numberMX-5/MiataBP01 18 110
*, BP02 18 110*,
BP03 18 110, BP04 18 110
MAZDASPEED MX-5 BP8K 18 110
*
Spark-plug gapMX-5/Miata 1.0―1.1mm (0.040―0.043 in)
MAZDASPEED MX-5 0.7―0.8mm (0.027―0.031 in)
* ex factory
qLubricant Quality
Lubricant Classification
Engine oil Refer to the recommended SAE viscosity numbers on page 8-14.
Manual transmission oilAny temperatureAPI Service GL-4 or GL-5
SAE 75W-90
Above 10°C (50°F)API Service GL-4 or GL-5
SAE 80W-90
Automatic transmission fluid ATF M-III or equivalent (e.g. Dexron® III)
Rear differential oilAPI Service GL-5
SAE 90
Power steering fluid ATF M-III or equivalent (e.g. Dexron® III)
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
10-4
Specifications
MX-5 Miata_8T72-EA-04G_Edition1 Page286
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G

Black plate (287,1)
qCapacities
(Approximate Quantities)
ItemUnit
L US qt Imp qt
Engine oilWith oil filter 3.8 4.0 3.3
Without oil filter 3.6 3.8 3.2
CoolantMX-5/Miata 6.0 6.3 5.3
MAZDASPEED MX-5 6.2 6.6 5.5
Manual transmission oil5-Speed transmission 2.0 2.1 1.8
6-Speed transmission 1.8 1.9 1.6
Automatic transmission fluid 6.7 7.1 5.9
Rear differential oilMX-5/Miata 1.0 1.1 0.9
MAZDASPEED MX-5 0.8 0.85 0.7
Fuel tank 48.012.7
(US gal)10.6
(Imp gal)
Check oil and fluid levels with dipsticks or reservoir gauges.
qDimensions
Item Vehicle specification
Overall lengthMX-5/Miata 3,945 mm (155.3 in), 3,963 mm (156.0 in)*
MAZDASPEED MX-5 3,964 mm (156.1 in), 3,983 mm (156.8 in)*
Overall width 1,678 mm (66.1 in)
Overall height 1,228 mm (48.4 in)
Front tread 1,415 mm (55.7 in)
Rear tread 1,440 mm (56.7 in)
Wheelbase 2,265 mm (89.2 in)
* With license plate holder
qWeights
Item Weight
GVWR (Gross Vehicle Weight Rating) 1,337 kg (2,948 lb)
GAWR (Gross Axle Weight Rating)Front 685 kg (1,510 lb)
Rear 675 kg (1,488 lb)
qAir Conditioner
Gas complies with SAE J639 Maximum operating charge
HFC134a (R-134a) 0.4 kg (14.1 oz)
Specifications
10-5
MX-5 Miata_8T72-EA-04G_Edition1 Page287
Wednesday, June 9 2004 3:6 PM
Form No.8T72-EA-04G