After my wife's dealer refused to to a drop and fill on her 2017 Explorer, only do transmission flush or a transmission case spit I purchased 12 quarts from Rock Auto for $5/quart delivered. The dealer did me a favor and saved me money because with her 2.3 EcoBoost engine it's real easy to change the ATF via drain and fill. I'll do it cold so I can measure what came out and I'll put what goes back in.
Whimsey
Whimsey