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That about sums it up.
On 10/31/2022 7:56 PM, Simon Lachlan via Healeys wrote:
>
> I made myself some notes which I later submitted to our local AH mag.
> Hereâ??s the gist of them. May have posted this beforeâ?¦.
>
> 1. â??All brake fluid is â??syntheticâ??â?¦itâ??s not a â??naturalâ??
> product.
> 2. Most synthetic fluids are NOT silicone. They are polyethylene
> _glycol_ ether based.
> 3. DOT 3 & 4, which can be mixed, are not silicone. They are glycol.
> 4. DOT 5, which cannot be mixed with 3 or 4, is silicone. Canâ??t be
> mixed with anything!
> 5. DOT 5.1 is glycol based and cannot be mixed with DOT 5.
> 6. DOT 5.1 can be mixed with DOT 3 or 4, as both are glycol based.
>
> The word â??syntheticâ?? began to appear when manufacturers worked out
> that it made regular brake fluid sound more special ie they could
> charge us more money for the same old stuff.
>
> DOT stands for *_D_*ept. *_O_*f *_T_*ransport and relates to the
> fluidsâ?? boiling points. If a car brakes at high speed, the brakes get
> hot. Some heat is carried away from the brakes by the brake fluid. Bad
> news if the fluid boils! The faster youâ??re going, the higher DOT you
> need. Higher DOT numbers indicate higher boiling points for â??Dryâ??
> fluid (has not absorbed any water) and â??Wetâ?? fluids (has absorbed
> water). ie, the wetter it is, the more problematic it becomes. Mixing
> 3 with 4 lowers the boiling points and vice verca.â??
>
> Simon
>
> *From:*Healeys <healeys-bounces@autox.team.net> *On Behalf Of *Mark
> Donaldson
> *Sent:* 31 October 2022 22:06
> *To:* 'Bob Spidell' <bspidell@comcast.net>; healeys@autox.team.net
> *Subject:* Re: [Healeys] Brake Fluid
>
> DOT5 and DOT 5.1 are *NOT* compatible.
>
> Iâ??ve have been using Bel-Ray DOT5 SBF in my BN2 and my tri-carb since
> 1992.
>
> Iâ??ve never had a problem.
>
> Mark
>
> Ardmore, NZ
>
> *From:*Bob Spidell <bspidell@comcast.net>
> *Sent:* Monday, 31 October 2022 5:35 PM
> *To:* healeys@autox.team.net
> *Subject:* Re: [Healeys] Brake Fluid
>
> "... There is a newer Glycol Ester DOT5 ..."
>
> I think you're referring to 'DoT5.1'Â I also think it was deliberately
> named so as to confuse the issue.
>
> On 10/30/2022 8:05 PM, Christopher Moog via Healeys wrote:
>
> 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.Â
> 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.Nethttp://www.team.net/donate.html
> Suggested annual donation $12.75
>
> Archive:http://www.team.net/pipermail/healeys
> http://autox.team.net/archive/healeys
>
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>
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>
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That about sums it up.<br>
<br>
<div class="moz-cite-prefix">On 10/31/2022 7:56 PM, Simon Lachlan
via Healeys wrote:<br>
</div>
<blockquote type="cite"
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<div class="WordSection1">
<p class="MsoNormal"><span style="mso-fareast-language:EN-US">I
made myself some notes which I later submitted to our local
AH mag. Hereâ??s the gist of them. May have posted this
beforeâ?¦.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-fareast-language:EN-US"><o:p>Â </o:p></span></p>
<ol style="margin-top:0cm" type="1" start="1">
<li class="MsoNoSpacing" style="mso-list:l0 level1 lfo1">â??<span
style="font-family:"Times New Roman",serif">All
brake fluid is â??syntheticâ??â?¦itâ??s not a â??naturalâ??
product.<o:p></o:p></span></li>
<li class="MsoNoSpacing" style="mso-list:l0 level1 lfo1"><span
style="font-family:"Times New Roman",serif">Most
synthetic fluids are NOT silicone. They are <span
style="color:#222222">polyethylene <u>glycol</u> ether
based.</span><o:p></o:p></span></li>
<li class="MsoNoSpacing" style="mso-list:l0 level1 lfo1"><span
style="font-family:"Times New Roman",serif">DOT
3 & 4, which can be mixed, are not silicone. They are
glycol.<o:p></o:p></span></li>
<li class="MsoNoSpacing" style="mso-list:l0 level1 lfo1"><span
style="font-family:"Times New Roman",serif">DOT
5, which cannot be mixed with 3 or 4, is silicone. Canâ??t
be mixed with anything!<o:p></o:p></span></li>
<li class="MsoNoSpacing" style="mso-list:l0 level1 lfo1"><span
style="font-family:"Times New Roman",serif">DOT
5.1 is glycol based and cannot be mixed with DOT
5.<o:p></o:p></span></li>
<li class="MsoNoSpacing" style="mso-list:l0 level1 lfo1"><span
style="font-family:"Times New Roman",serif">DOT
5.1 can be mixed with DOT 3 or 4, as both are glycol
based.<o:p></o:p></span></li>
</ol>
<p class="MsoNoSpacing"><span style="font-family:"Times New
Roman",serif"><o:p>Â </o:p></span></p>
<p class="MsoNoSpacing"><span style="font-family:"Times New
Roman",serif">The word â??syntheticâ?? began to appear when
manufacturers worked out that it made regular brake fluid
sound more special ie they could charge us more money for
the same old stuff.<o:p></o:p></span></p>
<p class="MsoNoSpacing"><span style="font-family:"Times New
Roman",serif"><o:p>Â </o:p></span></p>
<p class="MsoNoSpacing"><span style="font-family:"Times New
Roman",serif">DOT stands for <b><u>D</u></b>ept.
<b><u>O</u></b>f
<b><u>T</u></b>ransport and relates to the fluidsâ?? boiling
points. If a car brakes at high speed, the brakes get hot.
Some heat is carried away from the brakes by the brake
fluid. Bad news if the fluid boils! The faster youâ??re going,
the higher DOT you need. Higher DOT numbers indicate higher
boiling points for â??Dryâ?? fluid (has not absorbed any water)
and â??Wetâ?? fluids (has absorbed water). ie, the wetter it is,
the more problematic it becomes. Mixing 3 with 4 lowers the
boiling points and vice verca.â??<o:p></o:p></span></p>
<p class="MsoNoSpacing"><span style="font-family:"Times New
Roman",serif"><o:p>Â </o:p></span></p>
<p class="MsoNoSpacing"><span style="font-family:"Times New
Roman",serif">Simon<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="mso-fareast-language:EN-US"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><span
style="mso-fareast-language:EN-US"><o:p>Â </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> Healeys
<a class="moz-txt-link-rfc2396E"
href="mailto:healeys-bounces@autox.team.net";><healeys-bounces@autox.team.net></a>
<b>On Behalf Of
</b>Mark Donaldson<br>
<b>Sent:</b> 31 October 2022 22:06<br>
<b>To:</b> 'Bob Spidell' <a class="moz-txt-link-rfc2396E"
href="mailto:bspidell@comcast.net";><bspidell@comcast.net></a>;
<a class="moz-txt-link-abbreviated"
href="mailto:healeys@autox.team.net";>healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] Brake Fluid<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p>Â </o:p></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ">DOT5 and DOT 5.1 are <b>NOT</b>
compatible.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ">Iâ??ve have been using Bel-Ray DOT5 SBF in my BN2
and my tri-carb since 1992.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ">Iâ??ve never had a problem.<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ"><o:p>Â </o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ">Mark<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-family:"Tahoma",sans-serif;color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ">Ardmore, NZ<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:EN-US"
lang="EN-NZ"><o:p>Â </o:p></span></p>
<div>
<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0cm 0cm 0cm">
<p class="MsoNormal"><b><span lang="EN-US">From:</span></b><span
lang="EN-US"> Bob Spidell <<a
href="mailto:bspidell@comcast.net";
moz-do-not-send="true"
class="moz-txt-link-freetext">bspidell@comcast.net</a>>
<br>
<b>Sent:</b> Monday, 31 October 2022 5:35 PM<br>
<b>To:</b> <a href="mailto:healeys@autox.team.net";
moz-do-not-send="true"
class="moz-txt-link-freetext">healeys@autox.team.net</a><br>
<b>Subject:</b> Re: [Healeys] Brake Fluid<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-NZ"><o:p>Â </o:p></span></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
lang="EN-NZ">"... There is a newer Glycol Ester DOT5 ..."<br>
<br>
I think you're referring to 'DoT5.1'Â I also think it was
deliberately named so as to confuse the issue.<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-NZ">On 10/30/2022 8:05 PM,
Christopher Moog via Healeys wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
lang="EN-NZ">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.<o:p></o:p></span></p>
<div>
<p class="MsoNormal"><span lang="EN-NZ">On 10/30/2022 10:00
PM, Alan Seigrist wrote:<o:p></o:p></span></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<div>
<p class="MsoNormal" style="margin-bottom:12.0pt"><span
lang="EN-NZ">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.<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><span lang="EN-NZ"><o:p>Â </o:p></span></p>
<div>
<div>
<p class="MsoNormal"><span lang="EN-NZ">On Mon, Oct 31,
2022 at 5:43 AM Michael MacLean <<a
href="mailto:springer.mike51@gmail.com";
moz-do-not-send="true"
class="moz-txt-link-freetext">springer.mike51@gmail.com</a>>
wrote:<o:p></o:p></span></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC
1.0pt;padding:0cm 0cm 0cm
6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt">
<div>
<div>
<p class="MsoNormal"><span lang="EN-NZ">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?<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><span lang="EN-NZ">Mike
MacLean<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-NZ"><o:p>Â </o:p></span></p>
</blockquote>
</div>
</blockquote>
</blockquote>
<p class="MsoNormal"><span lang="EN-NZ"><o:p>Â </o:p></span></p>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
<pre class="moz-quote-pre"
wrap="">_______________________________________________
Archive: <a class="moz-txt-link-freetext"
href="http://www.team.net/pipermail/healeys";>http://www.team.net/pipermail/healeys</a>
<a class="moz-txt-link-freetext"
href="http://autox.team.net/archive/healeys";>http://autox.team.net/archive/healeys</a>
<a class="moz-txt-link-abbreviated"
href="mailto:Healeys@autox.team.net";>Healeys@autox.team.net</a>
<a class="moz-txt-link-freetext"
href="http://autox.team.net/mailman/listinfo/healeys";>http://autox.team.net/mailman/listinfo/healeys</a>
</pre>
</blockquote>
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_______________________________________________
Archive: http://www.team.net/pipermail/healeys
http://autox.team.net/archive/healeys
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