how many quarts of Redline should i put in my tranny? Also, is there any way to add oil to the LSD?

 

According to the service manual, 2.3 litters.
Then, around 2 and a half quart.

I use Red Line. 75w-90 is recommended for tranny.
As for Diff, what kind of Diff is installed ?
LSD, Open or Torsen?

 

Use MT 90 as it works much better than MTL or that atf/manual fluid (which btw was recommended by a mazda dealer, they suck)

 

yeah thats what I was going to order. I have a LSD, so what weight and how much goes in there?

Also, any ideas on Redline vs. Amsoil?

 

See the Factory Service Mnual at this web site under How To's / Manual. The gear oil specs are listed in the first few pages of the appropriate chapter. It will also show the correct method for adding oil, as most people do this incorrectly, especially with the TII transmission.
http://fc3s.org/

 

alright i just ordrered 3 quarts of Redline MT90, and 2 quarts of 75W90 from myoilshop.com . hopefully i will notice a difference in something.