Post by
ricebike »
https://forums.nicoclub.com/ricebike-u5064.html
Fri Mar 04, 2005 8:39 am
yup, silicone fluid.... thinks its for classic cars, i 4got
DOT4 ~ DOT3, similar properties
u can just grab a partner & do the 2-person bleeding, flushing out the old 3 fluid while u fill the master cyl w/ the better DOT4 fluid, being sure that u don't introduce any air in the system... i did this method w/ 4 different cars already
DOT 3 and 4 fluids are classified as Hygroscopic..this means that they absorb water. This is a good thing. DOT 5 fluid is silicon based and does not absorb water. NEVER use DOT 5 fluid in an ABS system. The reason for this is that because is does not absorb water, the moisture that is introduced to the system ends up collecting in corner of the hydraulic system and corroding the hell out of whatever it touches. Hygroscopic fluids will absorb the moisture so that it is in very low concentration everywhere in the hydraulic system and will not cause any considerable corrosion if the system is properly maintained. Brake fluid does need to be changed at a minimum of every two years. As water is absorbed into the system....the boiling point of the fluid is decreased. When brake fluid boils, you get brake fade because it develops a gas in the hydraulic system. Gas is compressable while liquids are not. If gas exists in the system, your pedal pressure will go into compressing that rather than forcing the pads against the rotors and stopping the car. Additionaly, as water is absorbed into the system, the chances of component corrosion is greatly increased. I recommend that brake fluid be flushed once a year, or if the vehicle is race (not drag racing, but road racing) in an environment where the brakes are pushed past there limits, the system should be flushed after every race. For racing or high performance use, a performance brake fluid like MOTUL or ATE super blue is recommended. from another car forum i goto occasionally
Modified by ricebike at 9:17 PM 3/5/2005