If I remember correctly I used to use ATF in my Talbot Torqueflite Auto Box. I actually managed to rebuild that one but not recomended. I digress. Thanks for that interesting bit of info. Why does ATF work with a leak when the normal fluid doesn't? I haven't bought the car yet so is there a lot of work in converting to use ATF? Sorry to keep asking but I am trying to understand the problem as well as look for a solution.

I do not know about using atf for the whole system. Not the worst idea, but you still have to drain the fluid out of the t-case. It will overflow after a little over 1 quart of fluid extra goes in.

actually ATF is a bonafide hydraulic fluid.says so right on the label.my testimonial is ive been using it in my 4matic this way for over 5 yrs.at 400kkm no problems have arisen

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michael cole 1980 300SD gone now but not forgotten,87tdt,90 300te 4matic 95 e320 wagon