Reddog1 wrote:
I was taught it is not a good idea to refill the reservoir as the fluid goes down. The thought being, if you do not have a leak in your fluid system, it can only go down as your pads and/or shoes wear. Not only does the low fluid serve as an indicator your pads and/or shoes need attention, but if you continously top off the reservoir it will overflow when you install new pads and/or shoes. That overflow can sure make a mess on the firewall and fender, as well as eat the paint.
Wayne
Yes, that is one way to think about it. I'm a nut about keeping fluid levels full so my mind won't let me do that. In any vehicle, older vehicles especially, they will eventually spring a fluid leak of some kind. The more fluid left in the system, the more time you have to spot/repair the leak. With brakes, this could be a fatal mistake. Brake fluid washes off with water. If you get to it quickly enough, it won't damage painted surfaces. Sucking the remaining old fluid out of the reservoir before replacing shoes/pads isn't a big deal to me. Today, most modern braking systems have pad warning indicators and low fluid indicators, but double/triple redundancy IMHO is a good idea when dealing with brakes.
Chum lee