Dot-5 ok?

As long as you replace it every few years your fine. It's not hygroscopic (absorbs water) like the other Dots. What this means is that when water does enter your braking system it is not absorbed and dispersed by the fluid, instead it gathers in spots, usually your calipers. With water sitting there it is much more apt to corrode and deteriorate your break lines, calipers, etc. When you have water sitting in your calipers, it's also closer to a heat source (your brakes). Dot-5 has a boiling point of 500 degrees F, water has a boiling point of 212 degrees F. You're brakes and calipers can easily reach 212 degrees F. Once the water in your line boils, it creates a gas, which is highly compressible (called brake fade). Thus your brake pedal goes all the way to the floor board, and you're still cruising at 65 into an oncoming semi. Also, Dot-5 is a bit more compressible right out of the can than your Dot-3/4. You can develop a spongy break pedal more easily once water enters a Dot-5 system, compared to Dot 3/4.

Dot-5 is a synthetic, its much less harsh on paint if spilled, and easier on your brake system. So as long as you do the maintenance... , and change your fluid (davescuda you scare me!:toothy10:), you're good to go!