How often do you change your...

[Cubieman]

I have read through the stickied maintenance info, but I am curious how often/how many miles you guys change out these fluids.

1. Tranny Fluid

2. Diff. Fluid

3. Coolant

4. Brake fluid

[Tbonem3]

30k
30k
2 years
2 years

[COVID-19]

Whenever the OBC hits 0 for the second time. (30k OBC miles) or every two years. Most likely on this M3 will be every 2 years since I don’t drive the car that much.