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Re: [Healeys] Which Brake Fluid?

To: healeys@autox.team.net
Subject: Re: [Healeys] Which Brake Fluid?
From: Bob Spidell <bspidell@comcast.net>
Date: Sat, 24 Jul 2021 18:07:40 -0700
Delivered-to: mharc@autox.team.net
Delivered-to: healeys@autox.team.net
References: <CAL4ZEON4tm9S4v_-oyeOqNfn01JmxKBQCx7MQwqPzxq+O1PTJA@mail.gmail.com> <39510B7B-7D50-488D-AC78-343E46663A4B@aol.com>
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Delphi == Lockheed

On 7/24/2021 5:36 PM, Perry Small via Healeys wrote:
> Have had DOT 3/4 in our BN2 for over 20 years this time around. Seems 
> like the only issue I have had is replacing the rear wheel cylinders 
> seal twice in that time. During regular inspections have found a very 
> small leak on one side or the other and replaced seals on both sides. 
> Front brakes and master seem to hold up better.
> P
>
> Sent from my iPhone
>
>> On Jul 24, 2021, at 7:59 PM, Michael MacLean via Healeys 
>> <healeys@autox.team.net> wrote:
>>
>> 
>> Well apparently DOT 3/4 is ahead in the poll.  I have used it 
>> exclusively in the Bugeye for over 20 years with no problems.  I was 
>> only asking to see if there was some advantage to using the silicone 
>> over synthetic because the BN2 has a completely new brake system 
>> which has never seen any type of fluid yet.  This would be the time 
>> to make that decision.  I  made all the brake lines, flares and used 
>> the original fittings when I restored the Bugeye and there were no 
>> leaks when I filled it.  I feel reasonably sure there won't be much 
>> of a problem with the BN2 in this respect.  So, I am leaning towards 
>> DOT 3/4.  As an interesting aside, the local parts supplier here in 
>> San Bernardino that has been selling British car parts and supplies 
>> recommended Delphi brake fluid.  The low moisture Castrol we were 
>> getting in the past no longer is made.  Today's Castrol brake fluid 
>> is made in India according to the shop owner.  The Delphi brake fluid 
>> is supposedly superior. What do I know, but I bought it.
>>
>> On Sat, Jul 24, 2021 at 3:15 PM richard mayor via Healeys 
>>
>>     The military uses silicone because some military vehicles sit for
>>     long periods of time when not in use..... waiting for that day
>>     when they need to spring into action.   Silicone fluid is not the
>>     best performance wise but because it does not accumulate moisture
>>     over time, it is best for military vehicles that sit unused for
>>     long periods of time.
>>
>>     FWIW, I was in the military and I use DOT 3
>>
>>
>>     On Sat, Jul 24, 2021 at 6:19 AM Michael Oritt via Healeys
>>
>>         "The military specifies Silicone brake fluid for a reason"
>>
>>         Not necessarily a good one.
>>
>>         Best--Michael Oritt
>>
>>         On Sat, Jul 24, 2021 at 9:04 AM warthodson--- via Healeys
>>
>>             I would like to say a few words on behalf of silicone
>>             brake fluid.
>>             It is non-hygroscopic (does not absorb moisture).
>>             It does not damage paint as do glycol fluids.
>>             A newly rebuilt and scrupulously clean brake system
>>             filled with silicone fluid should outlast a system filled
>>             with glycol fluid by several times.
>>             The military specifies Silicone brake fluid for a reason.
>>
>>             Gary Hodson
>>
>>
>>
>>             On July 23, 2021 at 2:05 PM, Michael MacLean via Healeys
>>             wrote:
>>
>>>             The BN2 is at the point where it is time to fill and
>>>             bleed the new brake system.  Now comes the time to
>>>             decide whether to go with DOT 3/4 brake fluid or try
>>>             silicone. Any recommendations, advice or warnings on
>>>             this decision?
>>>             Mike MacLean
>>


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    Delphi == Lockheed<br>
    <br>
    <div class="moz-cite-prefix">On 7/24/2021 5:36 PM, Perry Small via
      Healeys wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:39510B7B-7D50-488D-AC78-343E46663A4B@aol.com">
      <meta http-equiv="content-type" content="text/html; charset=UTF-8">
      Have had DOT 3/4 in our BN2 for over 20 years this time around.
      Seems like the only issue I have had is replacing the rear wheel
      cylinders seal twice in that time. During regular inspections have
      found a very small leak on one side or the other and replaced
      seals on both sides. Front brakes and master seem to hold up
      better. 
      <div>P<br>
        <br>
        <div dir="ltr">Sent from my iPhone</div>
        <div dir="ltr"><br>
          <blockquote type="cite">On Jul 24, 2021, at 7:59 PM, Michael
            MacLean via Healeys <a class="moz-txt-link-rfc2396E" 
href="mailto:healeys@autox.team.net";>&lt;healeys@autox.team.net&gt;</a> 
wrote:<br>
            <br>
          </blockquote>
        </div>
        <blockquote type="cite">
          <div dir="ltr">
            <div dir="ltr">
              <div>Well apparently DOT 3/4 is ahead in the poll.  I have
                used it exclusively in the Bugeye for over 20 years with
                no problems.  I was only asking to see if there was some
                advantage to using the silicone over synthetic because
                the BN2 has a completely new brake system which has
                never seen any type of fluid yet.  This would be the
                time to make that decision.  I  made all the brake
                lines, flares and used the original fittings when I
                restored the Bugeye and there were no leaks when I
                filled it.  I feel reasonably sure there won't be much
                of a problem with the BN2 in this respect.  So, I am
                leaning towards DOT 3/4.  As an interesting aside, the
                local parts supplier here in San Bernardino that has
                been selling British car parts and supplies recommended
                Delphi brake fluid.  The low moisture Castrol we were
                getting in the past no longer is made.  Today's Castrol
                brake fluid is made in India according to the shop
                owner.  The Delphi brake fluid is supposedly superior. 
                What do I know, but I bought it.<br>
              </div>
            </div>
            <br>
            <div class="gmail_quote">
              <div dir="ltr" class="gmail_attr">On Sat, Jul 24, 2021 at
                3:15 PM richard mayor via Healeys &lt;<a
                  href="mailto:healeys@autox.team.net";
                  moz-do-not-send="true">healeys@autox.team.net</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>The military uses silicone because some military
                    vehicles sit for long periods of time when not in
                    use..... waiting for that day when they need to
                    spring into action.   Silicone fluid is not the best
                    performance wise but because it does not accumulate
                    moisture over time, it is best for military vehicles
                    that sit unused for long periods of time. <br>
                  </div>
                  <div><br>
                  </div>
                  <div>FWIW, I was in the military and I use DOT 3<br>
                  </div>
                  <div><br>
                  </div>
                </div>
                <br>
                <div class="gmail_quote">
                  <div dir="ltr" class="gmail_attr">On Sat, Jul 24, 2021
                    at 6:19 AM Michael Oritt via Healeys &lt;<a
                      href="mailto:healeys@autox.team.net";
                      target="_blank" 
moz-do-not-send="true">healeys@autox.team.net</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 class="gmail_default"
                        style="color:rgb(51,51,255)">"<span
                          style="color:rgb(0,0,0);font-family:&quot;Comic
                          Sans MS&quot;,sans-serif;font-size:16px">The
                          military specifies Silicone brake fluid for a
                          reason"</span></div>
                      <div class="gmail_default"
                        style="color:rgb(51,51,255)"><span
                          style="color:rgb(0,0,0);font-family:&quot;Comic
                          Sans MS&quot;,sans-serif;font-size:16px"><br>
                        </span></div>
                      <div class="gmail_default"
                        style="color:rgb(51,51,255)"><span
                          style="color:rgb(0,0,0);font-family:&quot;Comic
                          Sans MS&quot;,sans-serif;font-size:16px">Not
                          necessarily a good one.</span></div>
                      <div class="gmail_default"
                        style="color:rgb(51,51,255)"><span
                          style="color:rgb(0,0,0);font-family:&quot;Comic
                          Sans MS&quot;,sans-serif;font-size:16px"><br>
                        </span></div>
                      <div class="gmail_default"
                        style="color:rgb(51,51,255)"><span
                          style="color:rgb(0,0,0);font-family:&quot;Comic
                          Sans MS&quot;,sans-serif;font-size:16px">Best--Michael
                          Oritt</span></div>
                    </div>
                    <br>
                    <div class="gmail_quote">
                      <div dir="ltr" class="gmail_attr">On Sat, Jul 24,
                        2021 at 9:04 AM warthodson--- via Healeys &lt;<a
                          href="mailto:healeys@autox.team.net";
                          target="_blank" 
moz-do-not-send="true">healeys@autox.team.net</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 style="color:black;font:12pt &quot;Comic
                          Sans MS&quot;,sans-serif">I would like to say
                          a few words on behalf of silicone brake fluid.
                          <div>It is non-hygroscopic (does not absorb
                            moisture).</div>
                          <div><font size="3">It does not damage paint
                              as do glycol fluids.</font><br>
                          </div>
                          <div><font size="3">A newly rebuilt and
                              scrupulously clean brake system filled
                              with silicone fluid should outlast a
                              system filled with glycol fluid by several
                              times.<br>
                            </font></div>
                          <div>The military specifies Silicone brake
                            fluid for a reason. <br>
                            <br>
                            Gary Hodson<br>
                            <br>
                            <div
                              
style="font-family:arial,helvetica;font-size:10pt;color:black"><font
                                size="2"><br>
                                <div
id="gmail-m_4183915300597405256gmail-m_2478624642646800173gmail-m_-1908300146633513305yiv1034049189">
                                  <div>
                                    <div
id="gmail-m_4183915300597405256gmail-m_2478624642646800173gmail-m_-1908300146633513305yiv1034049189yqt63377">
                                      <div><br clear="none">
                                        On July 23, 2021 at 2:05 PM,
                                        Michael MacLean via Healeys &lt;<a
href="mailto:healeys@autox.team.net"; target="_blank"
                                          
moz-do-not-send="true">healeys@autox.team.net</a>&gt;
                                        wrote:<br clear="none">
                                        <br clear="none">
                                      </div>
                                      <div>
                                        <blockquote type="cite">
                                          <div>
                                            <div>The BN2 is at the point
                                              where it is time to fill
                                              and bleed the new brake
                                              system.  Now comes the
                                              time to decide whether to
                                              go with DOT 3/4 brake
                                              fluid or try silicone. 
                                              Any recommendations, 
                                              advice or warnings on this
                                              decision?
                                              <div>Mike MacLean</div>
                                            </div>
                                          </div>
                                        </blockquote>
                                      </div>
                                    </div>
                                  </div>
                                </div>
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                        </div>
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