Specifications, Specifications -4, Caution – Mazda 2008 RX-8 User Manual
Page 362: Qengine, Qelectrical system, Qlubricant quality

Black plate (362,1)
Specifications
qEngine
Item
Model
Type
Rotary engine
Displacement
654 ml × 2 (654 cc × 2, 40.0 cu in × 2)
Compression ratio
10.0
qElectrical System
Item
Classification
Battery
12V-52AH/5HR
Spark-plug number
Trailing side
N3Y1 18 110A, N3H1 18 110D
*1
Leading side
N3Y8 18 110A, N3Y9 18 110A, N3H5 18 110A
*1
Spark-plug gap
1.15
―1.25 mm (0.046―0.049 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
Classification
Engine oil
Refer to the recommended SAE viscosity numbers on page 8-11.
Manual transmission oil
API Service GL-4 (SAE 75W-90)
Automatic transmission fluid
JWS3309
Rear differential oil
API Service GL-5 (SAE 90)
API Service GL-5 (SAE 80W-90)
API Service GL-5 (SAE 75W-90)
*
Brake/Clutch fluid
SAE J1703 or FMVSS116 DOT-3
* Not available from Mazda
10-4
Specifications
RX-8_8X44-EA-07G_Edition1 Page362
Friday, May 11 2007 5:5 PM
Form No.8X44-EA-07G