It is impossible to pump oil out of the automatic transmission through the dipstick.
To change the oil in an automatic transmission, you must use one of the following methods:
* By gravity through the drain plug: Drain the oil through the drain plug in the transmission pan. This allows about 50-60% of the oil to drain.
* Using an automatic supercharger: Connect the oil supercharger to one of the automatic transmission cooling fittings. Pump out the old oil and fill in new oil. This method allows you to replace up to 90% of the oil.
* Hardware replacement: Use special equipment that is connected to the automatic transmission cooling circuit. The device pumps out old oil and simultaneously fills in new oil, driving it through the entire system. This method allows you to replace almost all the oil (up to 99%).