Hi Max,
Been woolgathering about this issue. I always thought that was
correct. The engine should be broken in and then switched to synthetic
oil, if that's the owner's wish. But here's the kicker. Some cars,
like the 'Vette, reportedly come from the factory with Mobil 1 in them.
So: what's that do to the conventional wisdom of "break it in first"?
Wondering,
CR
Max Heim wrote:
>
> I have also read that synthetic oil is not recommended for break-in. Not
> sure why... About a decade ago an engine man told me to use 30wt racing oil.
>
> on 1/14/01 11:59 AM, Chuck Young at kb7cg@anv.net wrote:
>
> > I was told by the Machine Shop that did my 1500 engine to run regular 10W-40
> > oil in it the first 3000 to 6000 miles to allow all the new moving parts to
> > seat first then go to one of the synthetic brands... makes sense to me.
> >
> > Chuck Young
> > Las Vegas, NV
> > 62 & 79 Midgets
> >
> > ----- Original Message -----
> > From: "Larry B. Macy" <macy@bblmail.psycha.upenn.edu>
> > To: "Larry B. Macy" <macy@bblmail.psycha.upenn.edu>
> > Sent: Sunday, January 14, 2001 9:11 AM
> > Subject: Run-In Oil??
> >
> >
> >> Well Hello, Boys and Girls!!
> >>
> >> And How is Everybody Today??
> >>
> >> I am getting ready to reassemble the 1500 I have that is going to replace
> >> the engine I have in the car now. I have a bit of a question that is sure
> > to
> >> stir up a few comments.
> >>
> >> I have been running Mobil 1 15-50 in my engine for a few years. I like it
> > a
> >> lot. Now on the new engine I want to continue to run Mobil 1. However I am
> >> unsure of using it for running in the engine. I don't really see an issue
> >> with it, but I have not heard anything about it. I have heard that using
> >> organic oil is preferred, but I just don't know why.
> >>
> >> Any thoughts on why I should or should not use Mobil 1 synthetic oil to
> > run
> >> in a new engine??
> >>
> >> Larry
> >>
> >>
> >> Larry Macy
> >> 78 Midget
> >>
> >> Keep your top down and your chin up.
> >>
> >> Larry B. Macy, Ph.D.
> >> macy@bblmail.psycha.upenn.edu
> >> System Manager/Administrator
> >> Neuropsychiatry Section
> >> Department of Psychiatry
> >> University of Pennsylvania
> >> 3400 Spruce St. - 10 Gates
> >> Philadelphia, PA 19104
> >>
> >> Ask a question and you're a fool for three minutes; do not ask a question
> >> and you're a fool for the rest of your life.
>
> --
>
> Max Heim
> '66 MGB GHN3L76149
> If you're near Mountain View, CA,
> it's the red one with the silver bootlid.
thought that
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