[Mgs] ZDDP

[gordies garage]

There seems to be plenty of evidence of excessive cam wear all over the net.
I first heard of it in, maybe, 2004 or so.
A few years ago I was using Shell Rotella, a diesel oil, for higher ZDDP, but
they have since changed their formulation.   I switched to synthetic after the
Rotella went away and have not experienced any problems... yet.  By then, the
engine will need a rebuild anyway.

I believe that Little British Car Co. has an additive and possibly even a
specialty classic car oil available.

IMO, switching to full synthetic at anytime is about the single best thing you
can do to prolong life.

Gordie Bird
'62 MGA
couple of old Audis



> On Thu, Jan 10, 2013 at 11:22 AM,  <frankk12 at verizon.net> wrote:
>> Max: I have never used synthetics and wonder about the wisdom of switching
>> when my engines have so many miles on them. I have heard stories of seals
>> leaking after such a switch.
>
>
>
> I think that the leaking issues was a problem with early synthetics.
> Not a problem now.
>
> Amsoil sells oils with a "high zinc formulationto prevent wear on
> flat-tappet camshafts". I don't know how "high" it is.
>
> Simon
>
>> Frank
>> ----- Original Message ----- From: "Max Heim" <mvheim at sonic.net>
>> To: "MG List" <mgs at autox.team.net>
>> Sent: Thursday, January 10, 2013 2:19 PM
>> Subject: Re: [Mgs] ZDDP
>>
>>
>>> Mobil 1 Synthetic in the 15W-50 weight ONLY contains 1200ppm of
phosphorus
>>> and 1300ppm of zinc ("recommended for racing and flat tappet
>>> applications").
>>> I switched to this oil for my vintage cars once I discovered this fact.
>>> It's
>>> expensive ($8+/qt), but probably less expensive (and certainly less
>>> hassle)
>>> than dealing with additives.
>>>
>>>
>>>
>>> on 1/10/13 11:04 AM, frankk12 at verizon.net at frankk12 at verizon.net wrote:
>>>
>>>> Has anyone found a  source for ZDDP that is reasonable? I checked MOss
>>>> and the
>>>> shipping is 50% of the cost of the ZDDP.  My local NAPA store has never
>>>> heard
>>>> of it.
>>>> Frank Krajewski
>>>
>>>
>>>>
>>>
>>> --
>>>
>>> Max Heim
>>> '66 MGB GHN3L76149
>>> If you're near Menlo Park, CA,
>>> it's the primer red one with chrome wires
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>>
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>>
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