I did an ATF change and Oil Change at the same time. Here are my findings, tips, and experience. FYI, my car already has a fumoto valve installed.
Items used:
Lifted via: Sceptor ProRamps Model# 08226, HF jackstands as backup, wheel chokes.
Fluids, filters, other: 5-quart bottle Pennzoil Platinum 0w20, 4 quarts Mazda FZ transmission fluid (blue). WIX 57002 for Skyactiv engines, Pennzoil oil wrench, ziplock bag, 9-quart oil container, Dollar store 4-quart clear container with markers an 4-inch wide cooking funnel, rubber gloves, rags, ATF drain plug washer (same part# as engine oil drain plug washer).
Tools: Tekton torque wrench, regular craftsman ratchet, 10mm socket, 8mm hex socket, 3/8 to 1/2 inch adapter, 3/8 extention, flat head screwdriver, OBD2 Bluetooth scanner, flashlight.
Est. time of prep setup, fluid exchange process, old oil drop off to local auto-store, diagnostics, and testing, and cleanup: 2.5 hours.
Important FYI's:
ATF fluid exchange (1 session ) was originally done by dealership at aprox 37k. This car has 65K at time of this session.
ATF fluid measured high at dipstick before I started this ATF exchange session. It was basically well past the "high" line. Likely explanation: Back at 37k miles, the dealership removed aprox 3.7 quarts (or less), was busy with other cars, just poured 4 quarts (4 bottles) and called it a day.
Amount of ATF "I removed": 4 quarts measured. Likely explanation: I used ramps. I noticed that both the engine oil pan and the transmission oil pans had plugs designed with a bias for being angled back. Ramp raised the front 8.27 inches.
I poured 4 quarts of new ATF and the dipstick measurements were consistent prior to my ATF exchange session. A bit high. Glad I torqued drain plug at 25lbs. I removed a tad bit of fluid from the drain plug. Re torqued drain plug at 29lbs. I remeasured at 147F while engine is running and the dipstick fluid measurement is now in spec. Just at the "high line" going up to 154F. In spec at 122F.
ATF Drain plug washer torque spec: 22-30lbs.
My Transmission temp read were different from my coolant temps. At first yes they were identical. After some time the coolant would be at 147F while the transmission would ready something like 154F. My OBD2 Bluetooth scanner was used in conjunction with Torque paid app.
WIX 57002's filter may use the same oil filter wrench as OEM made in Japan 302 filter. Build quality looks legit. A viable alternative.
I really think that a fluid pump could be used for the ATF exchange process. I'll let someone else try it and report findings.
I would like to sometime create an entry point/door for the ATF plug. It saves a good 20 minutes not removing and installing the splash shield.
A total of 8 quarts of new ATF flud has been poured in so far throughout this car's life. I really think that a partial 4 quart exchange every 30k miles is good enough. 8 quarts is ideal. Anything more is gravy. So by aprox 100k this car would've had 12 quarts of new ATF oil poured in going by this 4 quart schedule. Well if we still own this car by then.
This car always had a smooth operating transmission. I noticed some slickness added after a test drive, manual mode, reversing, ect.
Now looking forward to getting the old dirty and low measured brake fluid flushed later this month.