I've been bleeding the brakes every 15k, and I'm always surprised at what a big improvement in pedal firmness it makes. Anyone else experience something like this? I guess I didn't expect the fluid to break down so much in just a few months and few thousand miles. I'm using Valvoline SynPower DOT4, which I've been using in various cars for about five years without experiencing this.
Perhaps I'm removing the factory installed air from the system, but no bubbles show up. We got the same difference in a friend's '04 WRX, so maybe it's a Subaru thing.
-Ryan