Re: Of DOT3, alcohol antifreeze, vinegar and other alchemy

Posted by Owen_Dyneto On 2010/1/1 22:11:59

As of a year or two ago and perhaps still true, not one automobile manufacturer worldwide used or recommended silicone brake fluid; I'm not sure why, could be a cost issue. It doesn't really offer much in the way of benefits for the extra cost for cars given regular competent service and used regularly, though the situation isn' the same with museum cars and those infrequently driven or less-than-ideally maintained.

Also, at least one rebuilder of hydraulic brake components voided his warranty if it was used. Maybe this dated back to the very early days of DOT5 and is no longer the case. One thing I've sometimes heard is that in marginal situations, worn cylinders and cups perhaps, DOT5 will seep whereas DOT3 or 4 won't. True or not, can't say.