Hi Robert,
The response was received on Friday 18 May 2007 and was from their technical
department.
The phone discussion I had on the subject with the technical department of
Ashland was on the previous day at which point I was assured that neither
the zinc content nor formulation had changed for several years.
I will post a copy on my blog.
Michael Salter
100S (1955)
3000 Mk111(1965)
100 (1953)
AHX12 (1953)
Bugeye (1961)
http://www.netbug.net/blogmichael/
-----Original Message-----
From: Robert Blair [mailto:rnbmail@yahoo.com]
Sent: May 21, 2007 1:18 AM
To: Michael Salter; healeys@autox.team.net
Subject: RE: oils
Michael,
Good info - thanks.
We should assume that their letter was recent, and
therefore valid for oils currently on store shelves?
Was their answer from the technical dept or the
marketing dept? Could you post a copy maybe?
Best, Robert.
--- Michael Salter <msalter@precisionsportscar.com>
wrote:
> I have been very reluctant to chime in on the oils
> subject because it seems
> to me that we, being those on the outside of the oil
> industry, are so far
> behind the 8 ball that we have little chance of
> really getting to the bottom
> of the issue.
> The one thing that I do know is the answer to a
> recent enquiry that I made
> of Valvoline regarding their VR1 Racing Oils.
> I question was:
> "We race an 1953 Austin Healey which has flat
> tappets. VR1 saved our bacon
> in the 2004 Targa Newfoundland when we ran the
> engine at full race speed for
> 14 km with no oil in it at all after puncturing the
> pan. Now we are getting
> very concerned about the removal of zinc from oils.
> Can you confirm that
> your non synthetic VR1 20/50 has still got
> sufficient ZDDP to protect the
> cam in this irreplaceable engine?"
> And the answer that I received, which I have since
> confirmed with a follow
> up phone call was:
> "VR1 racing still has 1400ppm of zinc. The oils
> rated ILSAC GF4 were lowered
> to 850ppm."
> I'm inclined to stick with what has worked for me.
> I have added this to my blog post on the subject.
> http://www.netbug.net/blogmichael/?p=49#comment-2981
>
>
> Michael Salter
> 100S (1955)
> 3000 Mk111(1965)
> 100 (1953)
> AHX12 (1953)
> Bugeye (1961)
> http://www.netbug.net/blogmichael/
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