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Re: [Healeys] Brake Fluid

To: healeys@autox.team.net
Subject: Re: [Healeys] Brake Fluid
From: Christopher Moog via Healeys <healeys@autox.team.net>
Date: Sun, 30 Oct 2022 23:05:30 -0400
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAL4ZEONCE=k7uMJWqgVZsqoN-nUatCM746sapgkvJw-RWFWSow@mail.gmail.com> <CAFBXTkL8Mxu5hz8=3j2x-jwj5vAfPZbvWXtbdup84jCLYUpG=w@mail.gmail.com>
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I've used both. Currently prefer DOT4.

Also everyone is speaking of DOT5 but there are now two different DOT5s. 
The first is the older silicone based DOT5. There is a newer Glycol 
Ester DOT5 that is compatible with DOT3 and DOT4. It has a lower 
viscosity than the DOT3 and DOT4 so it works better in some ABS systems. 
It also has a higher boiling point than DOT3 and DOT4. Don't see an 
advantage in Healeys.


On 10/30/2022 10:00 PM, Alan Seigrist wrote:
> The best selling point for Dot 4 is you can mix any Dot 4 or even Dot 
> 3 if you need to fill up.  As I understand it with Dot 5 you should be 
> careful to always use the same brand to fill up if necessary.
>
> Also, neither Dot 5 not Dot 4 is great for sitting a long time, Dot 4 
> absorbs water, Dot 5 will push any water down into the components.
>
> Dot 4, if the car is not used regularly, needs to be flushed every 
> couple of years.
>
>
>
> On Mon, Oct 31, 2022 at 5:43 AM Michael MacLean 
> <springer.mike51@gmail.com> wrote:
>
>     At this point in the restoration I have a completely rebuilt brake
>     system with all new components and tubing. Now is the time to make
>     the decision to use DOT 4 or Silicone.  What's the consensus, if
>     there is one?
>     Mike MacLean
>     _______________________________________________
>     Support Team.Net http://www.team.net/donate.html
>     Suggested annual donation  $12.75
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    I've used both. Currently prefer DOT4.<br>
    <br>
    Also everyone is speaking of DOT5 but there are now two different
    DOT5s. The first is the older silicone based DOT5. There is a newer
    Glycol Ester DOT5 that is compatible with DOT3 and DOT4. It has a
    lower viscosity than the DOT3 and DOT4 so it works better in some
    ABS systems. It also has a higher boiling point than DOT3 and DOT4.
    Don't see an advantage in Healeys.<br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 10/30/2022 10:00 PM, Alan Seigrist
      wrote:<br>
    </div>
    <blockquote type="cite"
cite="mid:CAFBXTkL8Mxu5hz8=3j2x-jwj5vAfPZbvWXtbdup84jCLYUpG=w@mail.gmail.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      <div dir="ltr">The best selling point for Dot 4 is you can mix any
        Dot 4 or even Dot 3 if you need to fill up.  As I understand it
        with Dot 5 you should be careful to always use the same brand to
        fill up if necessary.<br>
        <br>
        Also, neither Dot 5 not Dot 4 is great for sitting a long time,
        Dot 4 absorbs water, Dot 5 will push any water down into the
        components.<br>
        <br>
        Dot 4, if the car is not used regularly, needs to be flushed
        every couple of years.<br>
        <br>
        <br>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr" class="gmail_attr">On Mon, Oct 31, 2022 at 5:43
          AM Michael MacLean &lt;<a
            href="mailto:springer.mike51@gmail.com";
            moz-do-not-send="true" 
class="moz-txt-link-freetext">springer.mike51@gmail.com</a>&gt;
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0px 0px 0px
          0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
          <div dir="ltr">
            <div>At this point in the restoration I have a completely
              rebuilt brake system with all new components and tubing. 
              Now is the time to make the decision to use DOT 4 or
              Silicone.  What's the consensus, if there is one?</div>
            <div>Mike MacLean<br>
            </div>
          </div>
          _______________________________________________<br>
          Support Team.Net <a href="http://www.team.net/donate.html";
            rel="noreferrer" target="_blank" moz-do-not-send="true"
            
class="moz-txt-link-freetext">http://www.team.net/donate.html</a><br>
          Suggested annual donation  $12.75<br>
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class="moz-txt-link-freetext">Healeys@autox.team.net</a><br>
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          <br>
        </blockquote>
      </div>
      <br>
      <fieldset class="moz-mime-attachment-header"></fieldset>
      <pre class="moz-quote-pre" 
wrap="">_______________________________________________

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</pre>
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