On Apr 20, 1:31 pm, "./aal" <[email protected]> wrote:
> On Mon, Apr 20, 2009 at 6:59 AM, Owen Strawn <[email protected]> wrote:
>
> > How about Marvel Mystery Oil?
>
> definitely better than wd40 (wd40 dries to a goo rapidly)
> marvel is probably fine
> 3in1 oil is good too
>
Decades ago I read nasty comments about 3-in-1 oil ("Cleans-Lubricates-
Protects"). The claim was that it was really a heavier grade of oil
thinned out by a volatile solvent. When the solvent evaporated after
the oil had been put on a small-diameter shaft, the residual heavy oil
would become thick and prevent free rotation of the shaft. There were
also complaints that the additives for the Clean and Protect functions
were harmful to fine parts, perhaps causing corrosion. The conclusion
was that the benefits you got from the lubrication were only temporary
and eventually your rotating parts would be worse off than before.
Whether today's 3-in-1 product is better than it used to be is unknown
to me, but I have alway chosen Singer Sewing Machine Oil for delicate
parts. My experience has been good with this product. However, I
just noticed that the container it comes in has a safety warning not
to drink it since it contains petroleum distillates -- does this mean
that it too has a volatile solvent?
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