I've changed all of my cars to Dot 5. It's the silicone fluid. It gives no different pedal feel. The biggest advantage is that it is not hydroscopic. That is it does not absorb moisture from the atmosphere. If you have noticed all of the mud that forms in older master cylinders and wheel cylinders then you have seen the results of moisture in the brake fluid. All of this contamination is what destroys the brake system components. Years ago I had a Plymouth Volare, (no laughing, it was one of the most reliable cars I've owned), I changed the fluid to Dot 5 and for 10 years never had a brake problem other than just normal brake disc and shoe replacement. Try it, you'll like it.