2019+ Mazda 3 Transmission Fluid Replacement 

These transmissions might be slightly different between the NA models and the turbo model. It should be close to the same but the owners manual does tell you what fluid and how much it needs after a refill👍

Yes I did drain it on the ramps. I just wanted to do a drain and fill to freshen the fluid up that’s still in the transmission. 3 quarts came out, and I just put 3 quarts back. I know you are supposed to do it flat but I had to work with what I have for tools👍

30,000-40,000

The earlier the better! ~30,000 miles and probably every 20,000-30,000 miles after that