Just Wondering what type of fluid to use for my transmission and differential, do they both require the same type? is synthetic an option?

 

popular choice is Redline oils. MT90 for the trans. 75W90 for diff.

 

get out owners manual.. it is in the glove box.

read glove box..

if you cant do that post again.. we will help you find it online..

beers

 

Have to drink beer first to read that glove box...

 

Synthetic is perfectly acceptable.

This is the thread you want to read on the topic: https://www.rx8club.com/showthread.p...t=transmission

I just went out yesterday and bought Amsoil Severe Gear GL-4 75W90 for the transmission and Red Line GL-5 75W90 for the differential.

 

pwnd

 

thanks, ill try out redline, no manual when purchased car, got it used! thanks again

 

Then download the manual here:
http://www.mazdausa.com/MusaWeb/disp...=1122&x=47&y=1