[Vwdiesel] TDI oil

[dominique cormann]

On Sun, 1 Jun 2003 12:41:10 -0600
"TexasTDI" <TexasVWdriver at hotmail.com> wrote:

> "castrol claims it meets API CG-4, but has not gone through the steps to
> actually get it approved."
>
> CG-4 is outdated.  The minimum rating you should use is CH-4.  But you

Well of course as oils get reformulated to meet the new API standard,
you should use the newest oil - its almost impossible not to. That said
though, it doesn't suddenly mean the last API is suddenly absolute junk,
and is incapable of protecting your engine. Not to mention that some
oils aren't even reformulated when new API standards come out because
the API sets the performance levels low enough, that decent oils still
pass the tests without change.

CG-4 is what most TDI manuals stated should be used, and if somehow you
could still use this level of oil, i'm sure it would protect the engine
for a long long long time. Perhaps the newer TDI's have updated manuals
that now state CH-4, but the first manuals for TDI's stated even CF-4
was recommended. All thats happening here is that at the time of
printing, they just write in whatever is the current standard - don't
read to much into this.

The differences between CH-4 and CG-4 are evolutionary, NOT
revolutionary.

> really need to use a CI-4 oil in the TDI.  CI-4 oils are the only oils
> specifically designed for use in diesel motors with EGR systems.
>

This is true for API, but most of the same oils that meet CF-4 to CH-4,
ALSO meet the european passenger and heavy duty truck oil ratings that
were for EGR and turbo equiped high speed diesels. They started testing
oils for these conditions earlier then we did, and the oils were
designed to meet these standards before API came around to including it
into the spec.

> Chris Thornton
> 1991 VW Jetta 2 Door 1.6 Diesel - 237k miles
> 2000 VW Golf 1.9TDI (turbo diesel) - 82k miles
> Amsoil Synthetic Lubricants Dealer #1098500
> http://www.amsoil.com
> http://texastdi.com/6/ubb.x
>
> ----- Original Message -----
> From: "dominique cormann" <dcormannml at rogers.com>
> To: "Shawn Wright" <swright at zuiko.sls.bc.ca>; <vwdiesel at vwfans.com>
> Sent: Sunday, June 01, 2003 10:25 AM
> Subject: Re: [Vwdiesel] TDI oil
>
>
> > If you call Castrol Canada they will ( if you manage to route yourself
> > to the right person ) send you a copy of the spec sheet for this oil. If
> > you look on freds website ( http://www.tdiclub.com/ ) some people have
> > done this, and I think one person even scanned it in as a jpeg.
> >
> > Castrol has there own diesel oil line ( Castrol RX ), and they have a
> > second company that produces Heavy Duty lubricants ( think fleet use ).
> >
> > http://www.castrolhdl.com/
> >
> > This company provides everything from conventional Group II based
> > lubricants to Group 4/5 blends for extended drain usage.
> >
> > This is just whats availible in north american from them with regards to
> > diesels, in europe they have a higher emphasis on passenger car diesel
> > oils for obvious reasons.
> >
> > My only point of contention with the choice of syntec, is that I would
> > have rather they gone with Petro canada's synthetic Duron. VW likely
> > gets a good deal on the syntec from Castrol, and yes castrol tested the
> > oil on TDI engines prior to sending it to VW, and castrol claims it
> > meets API CG-4, but has not gone through the steps to actually get it
> > approved. Internal testing of the oil. This is not unlike what a lot of
> > oil companies do - Amsoil and redline being the best examples.
> >
> > PS: Castrols Elixion synthetic is a great oil in the realm of Mobils
> > delvac 1, and Amsoils series 3000.
> >
> > http://www.castrolhdl.com/Common/PDS/1854.pdf
> >
> > Finding it is another matter. Since I can buy Delvac 1 at my local
> > walmarts, its still the synthetic oil I will continue to use. This is
> > the oil I put in a saturn and it gets changed once a year. I don't think
> > a group 3 oil ( Duron ) would go that distance.

----------------------------------------------------------------
   o  |~>                                      Dominique Cormann
| (\._[~]                                 dcormann at rogers.com
|~|) |~~|                             http://kozmik.guelph.on.ca