Capacities, service limits and common values for a UK Series 1 high-power RX-8.
Values here are for the 2005 UK high-power car unless noted. Service-fill quantities are starting quantities: set the final level using the dipstick or filler opening as applicable.
Vehicle and engine
Item
Specification
Engine
13B-MSP Renesis, two rotor, six-port high-power
Gearbox
Y16M-D six-speed manual
Final drive
4.444:1
Differential
Factory torque-sensing Super-LSD
Standard wheel
18 × 8JJ, ET50, 5 × 114.3 mm
Tyre
225/45R18 91W
Cold tyre pressure
220 kPa / 2.2 bar / 32 psi, front and rear
Fluids and capacities
System
Specification
Quantity
Engine oil, drain and refill
5W-30 is the Mazda European reference ( I use 10W-40 Semi-Synthetic)
3.3 L
Engine oil, with filter
As above; confirm on dipstick
3.5 L
Engine oil, overhauled engine
Initial fill after overhaul
4.7 L
Engine oil, total dry twin-cooler system
Not a routine service fill
6.7 L
Cooling system
Ethylene-glycol coolant and demineralised water; use premixed FL22 where the cap/neck is marked FL22
9.8 L total
Y16M-D gearbox
SAE 75W-90, API GL-4 or GL-5
1.75 L
Differential
SAE 90, 80W-90 or 75W-90, API GL-5
1.2–1.4 L
Brake hydraulic system
DOT 3, SAE J1703 / FMVSS 116
Fill to reservoir mark
Clutch hydraulic system
DOT 3 or DOT 4 for the UK specification
Fill to reservoir mark
Fuel tank
Premium unleaded petrol (>=98 Octane)
Approximately 61 L
Common service values
Item
Value
Leading spark plug
NGK RE8A-L standard; RE7A-L hotter factory option. RE7C-L is fitted on this car.
Trailing spark plug
NGK RE9B-T
Plug gap
1.05–1.15 mm; do not bend the iridium electrodes to adjust
Spark-plug torque
12.8–17.7 Nm
Wheel-nut torque
88–118 Nm, clean dry seating faces
Oil pressure reference
500 kPa / 5.0 bar at 3,000 rpm and 100 °C oil, high-power engine