yes definitely automatic tran fluid, I also prefer Mobile 1.

Ive also heard another possible cause is improper torque on the hub nut(?). I havent had to tear into mine yet, maybe someone else could clarify.

 

I hate to keep bugging you guys, but how much oil do you put in? I pulled out the 3/16 hex nut, and maybe 3 tablespoons of oil came out each hub. Any idea how many ccs to put back in? My buddy is out of the country, and I don't have access to his manual.

 

QF,

Fill until oil runs out of the fill hole at the 3'o-clock position with Mobil 1 Synthetic ATF. That should fix your problem. 2 years and no leakage problems as mentioned above. I suspect other causes for his leakage problems.