I did mine today. 2020 CX-5 Touring, 2.5L NA engine, 50,000 miles.
Drained the pan, dropped the pan, and changed the filter. The filter only held back a cup or so. I let it drip for 3 hours with the pan and filter removed.
Thanks for the detailed report. Were you able to just sway away the whole air filter box with wires connected to check the ATF level with engine running on your 2.5L NA / CD / 2020 CX-5?
I have a bi-directional scan tool that gives me the transmission temperature,
Do you mind to tell us what kind of scan tool (type、brand、model) you’re using?
the transmission took 5 liters /5.25 quarts.
According to 2020 Mazda CX-5 owner’s manual, the ATF capacity on 2.5L NA / CD is 7.8 L / 8.2 US qt
OR 8.0 L / 8.5 US qt without any comments. And the 2.5T on the same MY has 8.0 L / 8.5 US qt. The 2.5L NA on my 2016 CX-5 has 7.8 L / 8.2 US qt. Most people reported 1.25 ~ 2 quarts additional ATF are needed for the pan drop with a filter cartridge change.
I got genuine Mazda fluid in liters from Mazdashop online - they had the best price and it was half what my local dealership in Florida is charging.
I noticed that too on the other day. And the price is for 1-liter bottle which is a bit more than US ATF FZ quart bottle. Just hope the shipping from Canada won’t be too expensive.
A couple of notes: I use to work in a transmission shop, and this Mazda transmission pan and magnet are the cleanest I've ever seen on a first transmission service, like all things mechanical, transmission parts wear in, which leaves debris. - I was pleasantly surprised.
Many here felt there’re too much metal shavings and gunk on the magnet even on the pan for the first pan drop. Here’s the report from
@Digbicks1234 at 63K miles:
2016.5 CX-5 Transmission fluid change questions
Use red can Brakleen and a wire brush to remove the factory RTV pan sealer - it goes really fast. Get a toothbrush size wire brush and Brakleen to remove the sealer from the bottom of the transmission case. The fluid was very discolored, but not bad. Bad fluid smells like burned popcorn.
Thanks for reporting your experience.
I will drain the fluid again tomorrow, refill with new, and button up the bottom.
Most drive a week or two then do the second ATF change. I guess the ATF should be mixed very well between fresh and old once the engine is running and the transmission had been shifted into every gear.
So far I’ve seen people here doing the pan drop the last during 3 drains-and-fills. You’re the first did the pan drop and filter change the first.
I'm expecting the drain and fill I do tomorrow to take about a 1/2 quart less than what the transmission took today.
Although you said the original filter only held back a cup or so, but the filter element also absorbed plenty of ATF which couldn’t be drained. You should only need about 3.75 quarts to do a simple drain-and-fill, not 5.25 - 0.5 = 4.75 quarts. You may have a transmission with bigger capacity and that’s about 0.3 quart more. Please report back what you found.
The WIX filter and gasket I got from Rockauto had a different variation of gasket (similar but 2 holes were about 3/4" off), so I ended up buying RTV from a local auto parts store, I was a bit pissed about that.
I believe the reason why the pan gasket from WIX WL10379 wouldn’t fit is because your transmission is the newer version with 0.3 quart bigger capacity.
Some would want to buy a new pan for less effort on RTV cleaning job. They also need to watch out making sure to get a correct one as the pan shape and screw hole locations could be different due to the capacity change.