[Vwdiesel] Amsoil

[gary]

A diesel specific oil has a special additive package specifically for
soot suspension. And if I'm not mistaken, it has a higher zinc content
than non. Zinc is a high pressure lubricant. Too high a zinc content
will foul spark plugs in a gasser.

If you look at the so-called oil rating circle, you will see SJx only,
SJx/Cx,Cx/SJx, or Cx only. Where SJx only has no soot suspension
properties, SJ/Cx has some, and Cx/SJ has a bit more, and Cx only has
much more. Also with increasing levels of zinc.

There was an oil comparison site that explained all of this, of which I
don't remember where. Sorry.

-Gary in Oviedo


On Sun, 2003-07-20 at 14:40, TexasTDI wrote:
> What's your definition of "diesel specific"?  An oil that's only for
> diesels?
>
> Shell Rotella T 5w-40 synthetic oil is CH-4 for diesels and SL for gassers.
> Amsoil 15w-40 synthetic oil is CI-4 for diesels and SJ for gassers.
>
> Chris Thornton
> 1991 VW Jetta 2 Door 1.6 Diesel - 238k miles
> 2000 VW Golf 1.9TDI (turbo diesel) - 84k miles
> Amsoil Synthetic Lubricants Dealer #1098500
> http://www.amsoil.com
>
> ----- Original Message -----
> From: "Scott Kair" <scott3491 at insightbb.com>
> To: <vwdiesel at audifans.com>
> Sent: Sunday, July 20, 2003 10:36 AM
> Subject: Re: [Vwdiesel] Amsoil
>
>
> > Chris,
> >     While I can't comment on Amsoil, I've been delighted with Shell
> Rotella
> > Synthetic, which is  Diesel specific.  There have been enough positive
> > comments on Synthetics that when it became available here I tried it out
> of
> > curiosity, having used Rotella Dino for years.
> >     Cold weather starting was the main recommendation and I found the
> > Rotella Synthetic to be a boon.  I drive a plow truck, and with our wet
> > winter here, the car was parked out in the mess for extended periods.
> Upon
> > cold startup after that, the engine seemed to spin over more easily, and
> the
> > oil pressure warning light went out within about three seconds instead of
> > flickering endlessly while my heart stopped.
> >     The stuff went on clearance, so I bought a bunch of it and started
> using
> > it full time.  Early this spring, I took it in for a tbelt, thermostat, &
> > water pump change and my mechanic remarked that the valve train was clean
> > enough to eat off of, which could only be attributed to the oil.
> >     Unfortunately, this caused a feeding frenzy at Walmart's clearance
> rack,
> > as he and much of his family drive Diesels, too.   :)
> >     I'm still not comfortable with extended drain intervals, though, but
> > realize that quarterly/ 3k mi. changes are a waste of oil.  I've switched
> to
> > 3x/ yr., which is still probably not economically optimal, but I can buy a
> > whole lot of oil for the price of a new engine.
> >     HTH,
> >     Scott Kair
> >
> > ----- Original Message -----
> > From: "Mary Beth and Chris Geiser" <geiser at execpc.com>
> > To: <vwdiesel at vwfans.com>
> > Sent: Sunday, July 20, 2003 7:06 AM
> > Subject: [Vwdiesel] Amsoil
> >
> >
> > > Hi guys,
> > > The "new" '92 Ecodiesel I just picked up has 15-40 Amsoil in the
> > > engine.  That website recommends going a year or 25,000 miles between
> > > oil changes.  That seems like too long / too much crud could build up in
> > > the oil.  Thoughts?  I've always used a good dino oil and changed often
> > > - is there any source (other than manufacturer) to know which is really
> > > better and how long to go on a change?
> > >
> > > Thanks,
> > >
> > > Chris
>
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