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I heard that the reason we don't want to use synthetic in the older engine
tech is due to the use of cork in gaskets and the larger tolerances between
machined surfaces and bearing surfaces allows for the much higher viscosity
oil to let bearing slip or rotate.
If you have heavy carbon buildup the additives, combined with a good ole
fashion Italian tune up (i.e. give it some spirited driving at decent
revs), sounds be fine.
I would change the oil back to some high zinc content Dino juice after
4-500 miles.
-- Miq
On Sun, Oct 6, 2024, 12:25=E2=80=AFPM smokey <smokey@railops.com> wrote:
> I have been told that I should never use synthetic oil in my 235.
> However, I understand that Valvoline Restore & Protect works wonders for
> cleaning and restoring engines. Is it safe to use in a 1957 235?
>
> Thanks!
>
> Smokey
>
>
>
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<div dir=3D"auto">I heard that the reason we don't want to use syntheti=
c in the older engine tech is due to the use of cork in gaskets and the lar=
ger tolerances between machined surfaces and bearing surfaces allows for th=
e much higher viscosity oil to let bearing slip or rotate.<div dir=3D"auto"=
><br></div><div dir=3D"auto">If you have heavy carbon buildup the additives=
, combined with a good ole fashion Italian tune up=C2=A0 (i.e. give it some=
spirited driving at decent revs), sounds be fine.=C2=A0</div><div dir=3D"a=
uto"><br></div><div dir=3D"auto"></div><div dir=3D"auto">I would change the=
oil back to some high zinc content Dino juice after 4-500 miles.=C2=A0</di=
v><br>=C2=A0 -- Miq<div dir=3D"auto"><br><div class=3D"gmail_quote" dir=3D"=
auto"><div dir=3D"ltr" class=3D"gmail_attr">On Sun, Oct 6, 2024, 12:25=E2=
=80=AFPM smokey <<a href=3D"mailto:smokey@railops.com";>smokey@railops.co=
m</a>> wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin=
:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div id=3D"m_-7933=
853755205574293edo-message"><div><div style=3D"font-size:16px">I have been =
told that I should never use synthetic oil in my 235.=C2=A0 However, I unde=
rstand that=C2=A0Valvoline Restore & Protect works wonders for cleaning=
and restoring engines.=C2=A0 Is it safe to use in a 1957 235?</div><div st=
yle=3D"font-size:16px"><br></div><div style=3D"font-size:16px">Thanks!</div=
><div style=3D"font-size:16px"><br></div><div style=3D"font-size:16px">Smok=
ey</div><div style=3D"font-size:16px"><br></div><div style=3D"font-size:16p=
x"><br></div><div style=3D"font-size:16px"><br></div><div id=3D"m_-79338537=
55205574293edo-signature"></div></div></div>_______________________________=
________________<br>
<br>
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rrer">Oletrucks@autox.team.net</a><br>
errer" target=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/oletrucks"; rel=3D"norefer=
rer noreferrer" target=3D"_blank">http://www.team.net/pipermail/oletrucks</=
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cks/miq@bigllama.com" rel=3D"noreferrer noreferrer" target=3D"_blank">http:=
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</blockquote></div></div></div>
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