Black plate (361,1)
Engine Oil
NOTEChanging the engine oil should be done by an
Authorized Mazda Dealer.
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
5040
30
20
10
0
–10
–20
–30
Except U.S.A. and CANADA
(ILSAC)
(Mexico)
2.5-liter engine
Use SAE 5W-20 engine oil. If SAE 5W-
20 engine oil is not available, use SAE
5W-30 engine oil.
Maintenance and Care
Owner Maintenance
8-19
Mazda6_8Z64-EA-08H_Edition1 Page361
Wednesday, June 25 2008 10:5 AM
Form No.8Z64-EA-08H
Black plate (450,1)
Specifications
qEngine
Item Specification
2.5-liter engine 3.7-liter engine
Type DOHC-16V in-line, 4-cylinder DOHC-24V 60°V, 6-cylinder
Bore×Stroke 89.0 × 100 mm (3.50 × 3.94 in) 95.5 × 86.7 mm (3.75 × 3.41 in)
Displacement 2,488 ml (2,488 cc, 151.8 cu in) 3,726 ml (3,726 cc, 227.4 cu in)
Compression ratio 9.710.3
qElectrical System
Item Classification
Battery 12V-46AH/5HR
Spark-plug number 2.5-liter engine LFG1 18 110
*1
L3Y2 18 110
3.7-liter engine CY01 18 110*1
Spark-plug gap2.5-liter engine
1.25―1.35 mm (0.049 ―0.053 in)
3.7-liter engine 1.29―1.45 mm (0.051 ―0.057 in)
*1 ex factory
CAUTION
When cleaning the iridium plugs, do not use a wire brush.
(2.5-liter engine) The fine particulate coating on the iridium alloy and platinum tips
could be damaged.
(3.7-liter engine) The fine particulate coating on the platinum alloy could be
damaged.
q Lubricant Quality
Lubricant Classification
Engine oil Refer to the recommended SAE viscosity numbers on page
8-19.
Manual transaxle oil Any temperature
API 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 transaxle fluid 2.5-liter engine
ATF M-V
3.7-liter engine JWS3309
Power steering fluid ATF M-V
Brake/Clutch fluid SAE J1703 or FMVSS116 DOT-3
10-4
Specifications
Mazda6_8Z64-EA-08H_Edition1 Page450
Wednesday, June 25 2008 10:6 AM
Form No.8Z64-EA-08H
