are you kidding? if you buy an AC Delco filter it's a Wix, same with the Napa/Verdic, Auto Extra is another...
the red silicone valve is a giveaway of the 'premium' wix... if it's black then it's nitrile but still ok.
there is a drain plug on my 91 civic's auto transmission.
1) turn the wheel all the way to the right.
2) remove 3 plastic screws holding a plastic shroud on, behind the right wheel. fold back the plastic shroud out of the way (unless you're feeling really ambitious and want to undo the other...