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DOT4 v DOT3?

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Old Jan 27, 2011 | 01:36 AM
  #1  
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Default DOT4 v DOT3?

Is there any particular reason why I shouldn't use dot3 and opt for dot4 other than a slightly higher boiling point?
 
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Old Jan 28, 2011 | 09:27 AM
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DOT 4 Is a little better also for not collecting as much moisture
 
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Old Jan 30, 2011 | 08:59 AM
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DOT 4 is paint friendly as well is it not?
 
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Old Jan 30, 2011 | 12:18 PM
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I just went and picked up a bottle of DOT4. Thanks for the answers.
 
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Old Feb 2, 2011 | 05:06 AM
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Originally Posted by xwhyz1959
DOT 4 is paint friendly as well is it not?
Keep 3 and 4 away from paint. DOT 5 is synthetic....it's ok
 
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Old Feb 2, 2011 | 11:44 AM
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Default Wait!

You might not want to mix different types of brake fluid without first checking to make sure there compatible. I'm not sure about DOT 3 + 4 but I know your not supposed to mix DOT 5 with anything else. Bad thing happen, so I've been told.
 
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Old Feb 2, 2011 | 11:50 AM
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mixing dot 3/4 are fine... stay away from adding 5... you can add 5.1 but will dilute the higher boiling point.
 
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