Air Suspension, Carplay, onboard cooler, double din radio, climate control, wi-fi, hands free liftgate, self driving, waffle maker...

[1974D2004X4]

The issue with the extractors is that the filter in the pan doesn't get changed. I usually dropped the pan and replaced the filter and refilled the oil that I was able to drain. Typically, you only got about 1/3 of the fluid out with dropping the pan so really sweetening versus a wholesale change. I certainly don't miss DIY AT fluid and filter changes. Something I will never need to do on my Slate.

Good point, change the transmission filter at about 30,000 miles if able to be changed, then the extractor technique before that change if needed and after is acceptable. The filters for transmissions generally are ; "screen door on submarine level " so not a real factor. Hydraulic filters on IC engines are not much better so think of filters as insurance not cleaners. Catches big junk, but hydraulic or liquid filters are most efficient in the early use time frame, longer drains, longer use they lose efficiency and if they don't have capacity and life they will drop out trash and/or bypass.