Its fluid time...HELP?!

[SilverBullet00]

I have searched over many posts and have been doing some research on trans. and rear end fluid. I have come to the conclusion of using Royal Purple Syncromax in the tranny, but I still dont know about the rear end. I have found it unclear if running synthetic is bad and if you need an additive or not for the limited slip. So what should I look for??? My stang is my daily driver so I want performance with longevity. I know many of you have different opinions on what to run, but I am mostly after the "this will wreck your rear end if you..." help. thanks a lot guys!

 

[bdcardinal]

use a synthetic diff lube, Mobil 1, Redline, and RP are all good. i do not believe you need the additive with most of the synthetics.

 

[SilverBullet00]

anyone else want to through in the .02?

 

[Fast02]

Believe it comes factory with Synthetic in the rear end diff. I also would think as long as its one of the brands mentioned above and amsoil....that the next questions should be price and availability.

 

[40th GT]

Is it necessary to change the diff. fluid on a regular basis? I would guess so since it protects moving parts. But the manual says it's supposed to last a lifetime..