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My understanding is that, yes, you CAN have too much ZDDP. At
higher levels, zinc and/or the phosphorous in ZDDP can
microscopically etch metal surfaces. I believe ZDDP was initially
used for its detergent properties, before its protective properties
were noticed (but can't prove it). A pretty graph here, and you can
always search on 'can there be too much ZDDP:'<br>
<br>
<a class="moz-txt-link-freetext" href="https://aaoil.co.uk/123579-2/">https://aaoil.co.uk/123579-2/</a><br>
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<div class="moz-cite-prefix">On 4/26/2020 9:15 AM, Roger Grace
wrote:<br>
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<blockquote type="cite"
cite="mid:1589796124.84758882.1587917723755.JavaMail.zimbra@mailid.telus.net">
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<div>Interested to see that you feel it necessary to add
additional zinc. VR1 already has 1300 ppm ?<br>
</div>
<div>Is there a consensus on what amount is actually needed? Think
that you can have too much too ?<br data-mce-bogus="1">
</div>
<div>Am a VR1 user but don't add anything.<br data-mce-bogus="1">
</div>
<div>rg<br data-mce-bogus="1">
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<div>----- Original Message -----<br>
From: Bruce Steele <a class="moz-txt-link-rfc2396E" href="mailto:healeybruce@roadrunner.com"><healeybruce@roadrunner.com></a><br>
To: <a class="moz-txt-link-abbreviated" href="mailto:wwycoffbn7@aol.com">wwycoffbn7@aol.com</a>, 'healeylist'
<a class="moz-txt-link-rfc2396E" href="mailto:Healeys@autox.team.net"><Healeys@autox.team.net></a><br>
Sent: Sun, 26 Apr 2020 08:41:40 -0600 (MDT)<br>
Subject: Re: [Healeys] Oil Additives<br>
</div>
<div><br>
</div>
<div class="WordSection1">
<p class="MsoNormal"><span style="font-family: 'Trebuchet
MS',sans-serif;" data-mce-style="font-family: 'Trebuchet
MS',sans-serif;">I add a bottle of Red Line break-in
additive with my annual oil change of Valvoline VR-1 20W50
racing oil.</span></p>
<p class="MsoNormal"><span style="font-family: 'Trebuchet
MS',sans-serif;" data-mce-style="font-family: 'Trebuchet
MS',sans-serif;"> </span></p>
<p class="MsoNormal"><span style="font-family: 'Trebuchet
MS',sans-serif;" data-mce-style="font-family: 'Trebuchet
MS',sans-serif;">Bruce Steele</span></p>
<p class="MsoNormal"><span style="font-family: 'Trebuchet
MS',sans-serif;" data-mce-style="font-family: 'Trebuchet
MS',sans-serif;">Brea, CA</span></p>
<p class="MsoNormal"><span style="font-family: 'Trebuchet
MS',sans-serif;" data-mce-style="font-family: 'Trebuchet
MS',sans-serif;">1960 BN7</span></p>
<p class="MsoNormal"><span style="font-family: 'Trebuchet
MS',sans-serif;" data-mce-style="font-family: 'Trebuchet
MS',sans-serif;"> </span></p>
<p class="MsoNormal"><b><span style="font-size: 11.0pt;
font-family: 'Calibri',sans-serif;"
data-mce-style="font-size: 11.0pt; font-family:
'Calibri',sans-serif;">From:</span></b><span
style="font-size: 11.0pt; font-family:
'Calibri',sans-serif;" data-mce-style="font-size: 11.0pt;
font-family: 'Calibri',sans-serif;"> Healeys
[<a class="moz-txt-link-freetext" href="mailto:healeys-bounces@autox.team.net">mailto:healeys-bounces@autox.team.net</a>] <b>On Behalf Of </b>wwycoffbn7---
via Healeys<br>
<b>Sent:</b> Saturday, April 25, 2020 2:48 PM<br>
<b>To:</b> <a class="moz-txt-link-abbreviated" href="mailto:healeys@autox.team.net">healeys@autox.team.net</a><br>
<b>Subject:</b> [Healeys] Oil Additives</span></p>
<p class="MsoNormal"> </p>
<div>
<div>
<div>
<p class="MsoNormal"><span style="font-size: 10.0pt;
font-family: 'Arial',sans-serif; color: black;"
data-mce-style="font-size: 10.0pt; font-family:
'Arial',sans-serif; color: black;"><br>
Hello,</span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10.0pt;
font-family: 'Arial',sans-serif; color: black;"
data-mce-style="font-size: 10.0pt; font-family:
'Arial',sans-serif; color: black;"> </span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10.0pt;
font-family: 'Arial',sans-serif; color: black;"
data-mce-style="font-size: 10.0pt; font-family:
'Arial',sans-serif; color: black;">Tagging on to
Michael's comment on ZDDP in oils, what additives do
folks tend to use in their oils. Products like Red
Line's "Engine oil beak-in additive" or something
from NAPA, etc.?</span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10.0pt;
font-family: 'Arial',sans-serif; color: black;"
data-mce-style="font-size: 10.0pt; font-family:
'Arial',sans-serif; color: black;"> </span></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt: auto;
mso-margin-bottom-alt: auto;"
data-mce-style="mso-margin-top-alt: auto;
mso-margin-bottom-alt: auto;"><span style="color:
black;" data-mce-style="color: black;">Having seen
worn cams and pitted tappets, there is a desire to
keep that sort of wear from happening as best as one
can.</span></p>
<p class="MsoNormal" style="mso-margin-top-alt: auto;
mso-margin-bottom-alt: auto;"
data-mce-style="mso-margin-top-alt: auto;
mso-margin-bottom-alt: auto;"><span style="color:
black;" data-mce-style="color: black;"> </span></p>
<p class="MsoNormal" style="mso-margin-top-alt: auto;
mso-margin-bottom-alt: auto;"
data-mce-style="mso-margin-top-alt: auto;
mso-margin-bottom-alt: auto;"><span style="color:
black;" data-mce-style="color: black;">Bill</span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10.0pt;
font-family: 'Arial',sans-serif; color: black;"
data-mce-style="font-size: 10.0pt; font-family:
'Arial',sans-serif; color: black;"> </span></p>
</div>
<div>
<p class="MsoNormal"><span style="font-size: 10.0pt;
font-family: 'Arial',sans-serif; color: black;"
data-mce-style="font-size: 10.0pt; font-family:
'Arial',sans-serif; color: black;"> </span></p>
</div>
</div>
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