Quote:
Originally Posted by TIGGER
On another note, what are the supposed dangers of switching to Dot 5? Do people think that the seals are different in dot 5 designed systems? The only real reason I can find for the manufacturers NOT using Dot 5 is cost. AFAIK, HD is the only company that does and again, afaik Harley brakes aren't special in any way. Hey Buell guys, are you Dot 4 or Dot 5?
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One of the articles (can't remember which now) said DOT 5 was designed to work with ABS systems that require a thinner viscosity fluid to perform properly or to their maximum potential. I may have read that on wikipedia, can't remember. ABS systems rapidly increase and decrease the brake pressure when they are "working" so a lower viscosity fluid will react or flow faster each way to keep up with the system fluctuations. There is no other reason to use it, especially in a normal system that will lose brake pressure by using it.