Watched a guy in Phoenix turn a 10 year old brake fluid reservoir from black to clear in 20 minutes
Stopped by a buddy's bay in Phoenix last Tuesday and he was flushing the brake fluid on a 2014 Silverado with 140k on it. Old fluid came out looking like coffee, new stuff went in clear as water with a vacuum bleeder, and the pedal firmed up right away. Do you guys push flushes by mileage or go off a moisture tester reading?