Special X-fer case fluid on a 2001 3.0?
 

The local indy shop is quoting me $150 to channge the x-fer case fluid. When I declined as I can do it myself, he started talking about special additives and Fluids?? I stressed to him that it was a 2001 (not with the x-drive) and he still said it required two additives.

BMW's version of the fluid may have had special additives, but I believe that the fluid is Dexron. Since there are no clutch plates and thus no concern about the friction characteristics, I am not sure what any special additives would do.

Agreed - he said one helps the oil adhear to the gears, Im not sure about the other....

AFAIK no special fluid is required without x-drive as no clutch inside. Have a look at TIS

I put in straight Mobil 1 synthetic ATF. No additives should be added.

I used royal purple in mine and have had no issues. No special fluid needed. The BMW oem fluid works just fine too, but not at $ 150.00. lol I think he may be taking advantage of you. Have you had the work done already? If so ask him to show you the bottle he used.

Dexron ATF for the older transfer case NV-125