Black plate (273,1)
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.
(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
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.
Maintenance and Care
Owner Maintenance
8-15
MX-5_8U35-EA-05F_Edition1 Page273
Monday, April 18 2005 4:20 PM
Form No.8U35-EA-05F
Black plate (356,1)
Specifications
qEngine
Item Specification
Type DOHC-16V in-line, 4-cylinder
Bore×Stroke 87.5 × 83.1 mm (3.44 × 3.27 in)
Displacement 1,999 ml (1,999 cc, 122.0 cu in)
Compression ratio 10.8
qElectrical System
Item Model
Battery 12V-36AH/5HR
Alternator 12 V - 100 A
Starter 12 V - 1.4 kW
Spark-plug number L3G2 18 110
*1, L3Y1 18 110
Spark-plug gap 1.25―1.35mm (0.050―0.053 in)
*1 ex factory
CAUTION
When cleaning the iridium plugs, do not use a wire brush. The fine particulate coating on
the iridium alloy and platinum tips could be damaged.
qLubricant Quality
Lubricant type and classification
Engine oil Refer to the recommended SAE viscosity numbers on page 8-15.
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-V
Power steering fluid ATF M-III or equivalent (e.g. Dexron® II)
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
Rear differential oilAPI Service GL-5
SAE 90
10-4
Specifications
MX-5_8U35-EA-05F_Edition1 Page356
Monday, April 18 2005 4:20 PM
Form No.8U35-EA-05F
