While in Phoenix over the winter I stopped at a Ford dealer for an oil change on my F150 Ecoboost. During check out, after the 90 minute job, they mumbled that I was due for a Brake System Flush, a Fu...
^ But the aircraft mech said you don't need to do it... All depends on different conditions, but yes brake fluid absorbs water and yes I have a 43year old vehicle in the garage that probably hasn't had the brake lines fracked open in 25? Years. Somehow the brakes still work...well. Yes I'm a bit surprised myself. Also have daily drivers that I put a lot of miles on and want them to stay in good shape and a couple bottles of brake juice is pretty cheap.