[928uk] Valvoline VR1

[Jeff Warren]

In my last car club (Stags) there was a lot of commentary on VR1 in Europe
being recently changed and therefore different from the same labelled oil
in the US in that they allegedly reduced the ZDDP here making it an
inferior product. A few members tried to get an answer out of Valvoline
without success.

In the end quite a few recommended Classic Oils Heritage 20W 50 as it had
listed 1300ppm of ZDDP. It's also very reasonably priced at £27.95 for 5
litres.

Not sure it's appropriate for 928 engines but thought I would mention it.
No affiliation with Classic Oils.

Jeff

On Mon, 24 Jun 2024 at 03:49, Donald Peach via 928uk <928uk at lists.928.org.uk>
wrote:

> Many thanks, Smiffy, I will stick with the VR1. I didn't really want to
> learn that I should be spending £90.00 on 5l, so I am pleased to hear that!
>
> Thanks,
>
> Don.
>
> On 24/06/2024 02:02, Paul R Smith via 928uk wrote:
> > I think that should be 2023, (2013 is probably a typo,) when I pointed
> > out that finally Porsche had recognised that 928s need a -50 oil.
> > And I think we recently established that the new formulation of VR1 is
> > fine.
> >
> > The wording about the Porsche Classic 10W-50 are Porsche marketing's
> > words, so I would suggest that the implication that it is the best, is
> > just marketing talk.
> >
> > The reality is that in our climate you don't need a thin "winter"
> > grade for cold starting, so a 15W-50 or 20W-50 is fine. Then consider
> > that the more viscosity modifiers an oil needs to make a bigger
> > difference between the two numbers, the shorter it's life is, then it
> > makes more sense to stick with a 20W-50.
> >
> > Also remember that the ZDDP doesn't start to lay down it's protection
> > until the oil is 80 plus degrees, so you need to get the engine fully
> > warm every time you use it.
> >
> > I would be confident that the Porsche 10W-50 is good, but probably
> > vastly overpriced at £90 for 5l. And I don't think Porsche deserve our
> > money when they recommended -40 oils for so long when we all knew that
> > the 928 needs a -50.
> >
> > Smiffy
> >
> > On 24/06/2024 00:42, Donald Peach via 928uk wrote:
> > I think that at one stage Valvoline VR1 SAE 20/50 engine oli was
> > recommended for our V8s due to the high zinc content. Looking at the
> > VR1 Racing Oil now, it seems it is a new formulation, but still with a
> > high (? high enough?) zinc content. Is this still okay for the 928, or
> > should I go with the 2013 article on the 928.org site which seems to
> > suggest that the Porsche Classic 10/50 might be better?
> >
> > Best regards,
> >
> > Don.
> >
> >
>