Kentish, if your only going to change the filter and gasket you wont need the full 13 litres since a generous amount will remain in the transmission and torque converter. Unless you do a complete flush at least, I also dont think it is recommended to change the full amount all at once in a used transmission, I would just change the 3 or so litres that remains in the pan at filter change time.
95 E34 530I V2.37
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