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Five or 10 years ago I didn=E2=80=99t think there was much of an zinc ing=
redient
in Valvoline racing oil. Have things Change D?
On Sun, Sep 9, 2018 at 8:09 AM TERRY SMITH <terryrs@comcast.net> wrote:
> I have, on occasion, had too much of a good time, so yes I'm guessing yes
> anything has a surfeit of advantage. If you're running a zinc additive I
> don't think you'd need to also use racing oil. I'm just too lazy to mess
> with it. And too, I have to top off the oil with fair frequency and don'=
t
> want to have to track the dilution factor by adding zinc everytime.
>
> On September 9, 2018 at 7:56 AM Paul Dorsey <dorpaul1@gmail.com> wrote:
>
> Why do you think the synthetic oil might have done that? I ordered som=
e
> ZDVP from Moss, So I guess Valvoline racing one might be overkill for me.
> Can you have too much zinc?
>
> On Sun, Sep 9, 2018 at 7:46 AM TERRY SMITH < terryrs@comcast.net> wrote:
>
> Just my experience, but on my last engine rebuild, my lifters were toast,
> having traded much metal with the cam lobes. I'd run exclusively Valvoli=
ne
> synthetic, an otherwise fine oil except for the zinc content. Now I'm
> running Valvoline 20-50 racing oil. So far no problems, but we'll know f=
or
> sure at the next tear down.
>
> Terry Smith, '59 TR3A
> New Hampshire
>
> > On September 5, 2018 at 1:59 PM Randall < tr3driver@ca.rr.com> wrote:
> >
> >
> >
> > > I've been told that Valvoline Racing oil has zinc in it.
> > > It's odd that the newer cars don't require it. In fact, why
> > > is it important?
> >
> > Lots of opinions, here are mine:
> >
> > In a nutshell, it helps protect critical surfaces (like cam lobes and
> > lifters) in case the oil film breaks down (gets rubbed away by the
> relative
> > motion of parts).
> >
> > The TR camshaft (along with many other performance cars) is actually
> pretty
> > aggressive in terms of force developed between the camshaft lobe and
> lifter
> > during high rpm engine operation.
> >
> > Newer engines either use roller lifters (to eliminate the rubbing
> between
> > lobe and lifter) or less aggressive camshafts (that are less likely to
> rub
> > away the oil film).
> >
> > Honestly, I'm not absolutely convinced that the TR motor needs the extr=
a
> > ZDDP. But it seems clear that many older engines do (even those not
> > particularly high performance by today's standards); and it hardly seem=
s
> > worth taking a chance by using a lower ZDDP oil. (AFAIK, all modern
> motor
> > oils still contain some ZDDP, they just have lower amounts. The oil
> > industry has been searching for a suitable substitute, but I haven't
> heard
> > of them finding one yet.)
> >
> > -- Randall
> >
> > ** triumphs@autox.team.net **
> >
> > Donate: http://www.team.net/donate.html
> > Archive: http://www.team.net/pipermail/triumphs
> http://www.team.net/archive
> >
> > Unsubscribe/Manage:
> http://autox.team.net/mailman/options/triumphs/terryrs@comcast.net
>
>
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<div><div dir=3D"auto">=C2=A0Five or 10 years ago I didn=E2=80=99t think th=
ere was much of an =C2=A0zinc ingredient in =C2=A0Valvoline racing oil. Hav=
e things Change D?</div></div><div><br><div class=3D"gmail_quote"><div dir=
=3D"ltr">On Sun, Sep 9, 2018 at 8:09 AM TERRY SMITH <<a href=3D"mailto:t=
erryrs@comcast.net">terryrs@comcast.net</a>> wrote:<br></div><blockquote=
class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc soli=
d;padding-left:1ex"><u></u>
=20
<div><p style=3D"font-size:12pt;font-family:helvetica,arial,sans-serif;colo=
r:rgb(51,51,51)">I have, on occasion, had too much of a good time, so yes I=
'm guessing yes anything has a surfeit of advantage.=C2=A0 If you'r=
e running a zinc additive I don't think you'd need to also use raci=
ng oil.=C2=A0 I'm just too lazy to mess with it.=C2=A0 And too, I have =
to top off the oil with fair frequency and don't want to have to track =
the dilution factor by adding zinc everytime.=C2=A0 <br></p></div><div><blo=
ckquote type=3D"cite">On September 9, 2018 at 7:56 AM Paul Dorsey <<a hr=
ef=3D"mailto:dorpaul1@gmail.com"; target=3D"_blank">dorpaul1@gmail.com</a>&g=
t; wrote: <br> <br><div><div dir=3D"auto">=C2=A0Why do you think the synthe=
tic =C2=A0oil =C2=A0might have done that? I ordered some ZDVP from Moss, So=
I guess Valvoline racing one might be overkill for me. Can you have too mu=
ch zinc?</div></div><div><br><div class=3D"m_3122730354673180787ox-9a6985d4=
be-gmail_quote"><div dir=3D"ltr">On Sun, Sep 9, 2018 at 7:46 AM TERRY SMITH=
< <a href=3D"mailto:terryrs@comcast.net"; target=3D"_blank">terryrs@comc=
ast.net</a>> wrote: <br></div><blockquote>Just my experience, but on my =
last engine rebuild, my lifters were toast, having traded much metal with t=
he cam lobes.=C2=A0 I'd run exclusively Valvoline synthetic, an otherwi=
se fine oil except for the zinc content.=C2=A0 Now I'm running Valvolin=
e 20-50 racing oil.=C2=A0 So far no problems, but we'll know for sure a=
t the next tear down. <br> <br> Terry Smith, '59 TR3A <br> New Hampshir=
e <br> <br> > On September 5, 2018 at 1:59 PM Randall < <a href=3D"ma=
ilto:tr3driver@ca.rr.com" rel=3D"noopener" target=3D"_blank">tr3driver@ca.r=
r.com</a>> wrote: <br> > <br> > <br> > <br> > > I've =
been told that Valvoline Racing oil has zinc in it.=C2=A0 <br> > > It=
's odd that the newer cars don't require it.=C2=A0 In fact, why <br=
> > > is it important? <br> > <br> > Lots of opinions, here are=
mine: <br> > <br> > In a nutshell, it helps protect critical surface=
s (like cam lobes and <br> > lifters) in case the oil film breaks down (=
gets rubbed away by the relative <br> > motion of parts). <br> > <br>=
> The TR camshaft (along with many other performance cars) is actually =
pretty <br> > aggressive in terms of force developed between the camshaf=
t lobe and lifter <br> > during high rpm engine operation. <br> > <br=
> > Newer engines either use roller lifters (to eliminate the rubbing be=
tween <br> > lobe and lifter) or less aggressive camshafts (that are les=
s likely to rub <br> > away the oil film). <br> > <br> > Honestly,=
I'm not absolutely convinced that the TR motor needs the extra <br> &g=
t; ZDDP.=C2=A0 But it seems clear that many older engines do (even those no=
t <br> > particularly high performance by today's standards); and it=
hardly seems <br> > worth taking a chance by using a lower ZDDP oil.=C2=
=A0 (AFAIK, all modern motor <br> > oils still contain some ZDDP, they j=
ust have lower amounts.=C2=A0 The oil <br> > industry has been searching=
for a suitable substitute, but I haven't heard <br> > of them findi=
ng one yet.) <br> > <br> > -- Randall=C2=A0 <br> > <br> > ** <a=
href=3D"mailto:triumphs@autox.team.net"; rel=3D"noopener" target=3D"_blank"=
>triumphs@autox.team.net</a> ** <br> > <br> > Donate: <a href=3D"http=
://www.team.net/donate.html" rel=3D"noopener" target=3D"_blank">http://www.=
team.net/donate.html</a> <br> > Archive: <a href=3D"http://www.team.net/=
pipermail/triumphs" rel=3D"noopener" target=3D"_blank">http://www.team.net/=
pipermail/triumphs</a>=C2=A0 <a href=3D"http://www.team.net/archive"; rel=3D=
"noopener" target=3D"_blank">http://www.team.net/archive</a> <br> > <br>=
> Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman/options/=
triumphs/terryrs@comcast.net" rel=3D"noopener" target=3D"_blank">http://aut=
ox.team.net/mailman/options/triumphs/terryrs@comcast.net</a> <br></blockquo=
te></div></div></blockquote></div>
</blockquote></div></div>
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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