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Tod, Mercedes AMG engines, one man one engine, it built with Mobil One, =
taken the engine to the dyno, run to red line, and either makes the hp =
and torque or is rebuilt. They only use Mobil One in the entire =
process.
I also agree that many cam mnf recommend the use of a special lube =
during brake in just as you mentioned.
I have always used Mobil One, and am impressed with its performance and =
longevity as an oil.
Larry
> On Nov 14, 2015, at 5:19 PM, Tod Brown via Tigers =
<tigers@autox.team.net> wrote:
>=20
> My understanding is that the most important issue with flat-tappet =
engines and lubrication is that
> the initial break-in is crucial to longevity. For the first 1500-2000 =
miles of operation it is extremely=20
> important that the proper level of zinc additive (i.e. zddp) be =
provided so that cam surfaces, rings
> and cylinder bores be allowed to seat themselves. Newer oils are too =
slick to allow the necessary
> scuffing to take place, whereas the presence of zddp provides enough =
friction for the seating to=20
> take place. Once past the initial break-in, zddp is no longer as =
necessary. I have not seen a definitive
> statement as to whether zddp is necessary after break-in but many =
sources recommend that an
> oil with higher levels of zddp be used.=20
>=20
> I found the discussion at =
<http://www.hotrod.com/how-to/engine/ccrp-0702-break-in-new-cam/>http://ww=
w.hotrod.com/how-to/engine/ccrp-0702-break-in-new-cam/ =
<http://www.hotrod.com/how-to/engine/ccrp-0702-break-in-new-cam/>
> to be helpful. Note that, at the end of the article, there are some =
recommendations for oils with
> higher levels of zddp, usually used in diesel engines.=20
>=20
> Cheers,
>=20
> Tod Brown
> B382002384LRXFE
> TAC #864
> _______________________________________________
>=20
> tigers@autox.team.net
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/archive
> Forums: http://www.team.net/forums
> Unsubscribe: =
http://autox.team.net/mailman/options/tigers/lpaulick1@verizon.net
>=20
>=20
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">Tod, Mercedes AMG engines, one man one engine, it built with =
Mobil One, taken the engine to the dyno, run to red line, and either =
makes the hp and torque or is rebuilt. They only use Mobil One in =
the entire process.<div class=3D""><br class=3D""></div><div class=3D"">I =
also agree that many cam mnf recommend the use of a special lube during =
brake in just as you mentioned.</div><div class=3D""><br =
class=3D""></div><div class=3D"">I have always used Mobil One, and am =
impressed with its performance and longevity as an oil.</div><div =
class=3D""><br class=3D""></div><div class=3D"">Larry<br =
class=3D""><div><blockquote type=3D"cite" class=3D""><div class=3D"">On =
Nov 14, 2015, at 5:19 PM, Tod Brown via Tigers <<a =
href=3D"mailto:tigers@autox.team.net"; =
class=3D"">tigers@autox.team.net</a>> wrote:</div><br =
class=3D"Apple-interchange-newline"><div class=3D"">
=20
<meta http-equiv=3D"content-type" content=3D"text/html; =
charset=3Dutf-8" class=3D"">
=20
<div bgcolor=3D"#FFFFFF" text=3D"#000000" class=3D"">
<font face=3D"Arial" class=3D"">My understanding is that the most =
important issue
with flat-tappet engines and lubrication is that<br class=3D"">
<font face=3D"Arial" class=3D"">the initial br<font face=3D"Arial" =
class=3D"">e<font face=3D"Arial" class=3D"">ak-in is crucial to =
longevity. For the first</font></font></font>
1500-2000 miles <font face=3D"Arial" class=3D"">of operation it is =
extremely <br class=3D"">
<font face=3D"Arial" class=3D"">important that the proper level =
of zinc
additive (i.e. zddp) be<font face=3D"Arial" class=3D""> <font =
face=3D"Arial" class=3D"">provided
so that cam surfaces<font face=3D"Arial" class=3D"">, =
rings<br class=3D"">
<font face=3D"Arial" class=3D"">and cylinder bores be =
allowed to seat
themselves. Newer oils are too slick to allow the
necessary<br class=3D"">
<font face=3D"Arial" class=3D"">scuffing to take =
place, whereas the
presence of zddp provides enough friction for the
seating to <br class=3D"">
<font face=3D"Arial" class=3D"">take place. Once =
past the initial
break-in, zddp is no longer as necessary. I have
not seen a definitive<br class=3D"">
<font face=3D"Arial" class=3D"">statement as to =
whether zddp is
necessary after break-in but many sources
recommend that an<br class=3D"">
<font face=3D"Arial" class=3D"">oil with higher =
levels of
zddp be used. <br class=3D"">
<br class=3D"">
<font face=3D"Arial" class=3D"">I found the =
discussion at <a =
href=3D"http://www.hotrod.com/how-to/engine/ccrp-0702-break-in-new-cam/"; =
class=3D""></a><a class=3D"moz-txt-link-freetext" =
href=3D"http://www.hotrod.com/how-to/engine/ccrp-0702-break-in-new-cam/";>h=
ttp://www.hotrod.com/how-to/engine/ccrp-0702-break-in-new-cam/</a><br =
class=3D"">
<font face=3D"Arial" class=3D"">to be =
helpful. Note that<font face=3D"Arial" class=3D"">, at the end of the
article, there are some recommendations
for oils with<br class=3D"">
<font face=3D"Arial" class=3D"">higher =
levels of
zddp, usually used in diesel engines.
<br class=3D"">
<br class=3D"">
<font face=3D"Arial" =
class=3D"">Cheers,<br class=3D"">
<br class=3D"">
<font face=3D"Arial" class=3D"">Tod =
Brown<br class=3D"">
<font face=3D"Arial" =
class=3D"">B382002384LRXFE<br class=3D"">
<font face=3D"Arial" =
class=3D"">TAC #864</font><br class=3D"">
=
</font></font></font></font></font></font></font></font></font></font></fo=
nt></font></font></font></font></font></font></font>
</div>
_______________________________________________<br class=3D""><br =
class=3D""><a href=3D"mailto:tigers@autox.team.net"; =
class=3D"">tigers@autox.team.net</a><br class=3D""><br class=3D"">Donate: =
http://www.team.net/forums<br class=3D"">Unsubscribe: =
http://autox.team.net/mailman/options/tigers/lpaulick1@verizon.net<br =
class=3D""><br class=3D""><br class=3D""></div></blockquote></div><br =
class=3D""></div></body></html>=
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