Mazda RX-8 Workshop Manual page 2314

3O–ring
4Drain cock
5ATF cooler
6Radiator
Radiator Outer Tank (In-Tank Oil Cooler) Disassembly Note
1. Inspect the height of the header tabs.
2. Insert the end of a medium tip screwdriver between the end of the header tab and the outer
tank.
NOTE:
Do not open more tabs than necessary for tank removal.
3. Pivot the screwdriver to pry the tab away from the tank and repeat the procedure for each
tab.