Wat are the benifits of changing from dot 4 to dot 5.1 :

Dot 4 oder dot 5.1. Do not confuse dot 5.1 with dot 5.0. Dot 5.1 is the successor of dot 4. Dot 4 is the successor of dot 3.

Apparently ford is also selling a super dot 4 brake fluid. Dot 5.1 has the highest boiling point wet or dry of any brake fluid out there. The brakes on my bike are crap house.

I use dot 5.1 because it is clear, this is another (some kind of better) dot 4. On the downside, dot 5.1 will absorb water, it eats paints, and it is also expensive than dot 3 and dot 4. #6 · oct 15, 2010.

Dot 5.1 is one of several designations of automotive brake fluid, denoting a particular mixture of chemicals imparting specified ranges of boiling point. I've tried everything i can think of and have looked online for help also. Dot 4 hight temp fluid is about £13.

I found this that list the specifications and manufacture of it for ford. Entscheidend ist der nasssiedepunkt der ist bei den meisten dot nicht sehr weit auseinander, außer bei dot racing, da sind es ca. Just get dot 4, or get 5.1 if you plan on doing mountain carving/racing.

Dot 5 is silicone based and dot 5.1 is glycol based and mixing the 2 will fubar your seals. Dot 5.1's drawbacks are its water absorption, paint corrosion, and higher cost than dot 3 and dot 4. I run ap600 in my track car which is a dot 4 with a high dry boiling temp (over 300c).