[Spridgets] ZDDP

[Deikis, John G]

Cagey devils!  Still won't tell us the ppm!




-----Original Message-----
From: Larry Daniels [mailto:ladaniels at sbcglobal.net]
Sent: Monday, August 13, 2007 9:28 AM
To: Billy Zoom; Spridgets
Subject: Re: [Spridgets] ZDDP

----- Original Message -----
From: "Billy Zoom" <billyzoom at billyzoom.com>
To: "Deikis, John G" <John.Deikis at va.gov>; "Paul Asgeirsson"
<PAsgeirsson at worldnet.att.net>; "63AHBJ7" <63ahbj7 at gmail.com>;
"Spridgets"
<spridgets at autox.team.net>
Sent: Thursday, August 09, 2007 4:49 PM
Subject: Re: [Spridgets] ZDDP


> Castrol GTX with bottle of STP?
STP still contains ZDDP, but they don't tell you how much. It used to be
the
main ingredient, but now it's listed last instead of first. Presumably,
STP
4cyl. in the red bottle would be better than the regular blue bottle
because
it's main function isn't to raise viscosity. It's too bad we can't just
buy
ZDDP.  I'll bet one quart would last a long time.
BZ
==============================

I emailed STP from their website regarding the two oil additives and
their
relative amount of ZDDP.  Here is their response:


Dear Mr. Daniels,

Thank you for contacting us about STP Oil Treatment. We always
appreciate
hearing from our consumers.



The STP 4 Cylinder Oil Treatment contains only slightly more than the
STP
Oil Treatment.  They both contain about 4 times the amount of ZDDP as
what
motor oils once contained.  The product was originally designed for flat

tappet cam motors.  We have many classic car owners that use our product
for
this reason.



Again, thank you for contacting us.


Sincerely,



Patti Copper



Consumer Response Representative


Consumer Services

----------------------------

Given this, I think we could safely use a bottle (or 2 -- they are a tad

less than a pint) of either additive in every oil change and have a
resultant mix containing about the same amount of ZDDP as in the good
old
days.

I was a little concerned about the info Paul A received about racing
oils
not being formulated for normal mileage between changes.  This should
take
care of any concerns and enable us to use whatever quality off-the-shelf
oil
we want, no?

Larry Daniels