Clutch/brake fluid
 

what clutch fluid would be best to put in the mazda rx8 ???

gunna avoid the flame fest here, and considering you didn't even tell us what you are looking for in a brake fluid, if you track the car, etc, just go get some Castrol LMA and call it a day.

DOT3 DOT4 or DOT5.1 will all work...what are you doing with the car?..if it is a daily driver with no track time...just use a good DOT4 fluid from an autoparts store and bleed it through the system well...

If you are going to track..use something with a higher temp rating... ATE Superblue is a good fluid for a good price..

sorry yes its just a daily driver