zebulon wrote:agreed, a vacuum pump would allow careful adjustment of the fluid level. dumping excess via the drain plug, dumping too much and then adding to the proper level is typical[at least for me]
the biggest problem I have is seeing the proper level on the dip stick immediately after adding fluid. the residue in the dip stick tube coats the whole dipstick. driving around the block each time I add fluid seems to be the only way to keep the transmission temp up and allow the excess fluid in the dip stick tube to settle for an accurate reading.
That's a problem with most any dipstick. Pumping it out is less messy.
I had a ATF leak on my '09 which turned out to be that the dealer filled it to the full if not a tad above the max line. It appears that "some" 6F35 transaxles will blow the ATF out the fill tube if at the max level. Their fix is to keep it at about the lower 1/3 of the good area on the dipstick. It would only do this when driven at highway speeds. This happened last year after the dealer did a oil change and topped it off. Funny it takes four years to figure this out!