<VV> Fw: Motor Oil

[Mark Durham]

Bob, please don't twist my words. I have used oils that do not have
sufficient zddp to protect the cam and lifters with an additive and the cam
and lifters have broken in and built the needed layer of zinc-phosphorus
and has maintained that layer in service throughout the engines life cycle
with no cam/lifter related failures, where engines using the same oil
failed at about 1/3 normal life due to cam/lifter failures.
ZDDP additives work.
Mark Durham

Sent from my Windows Phone
------------------------------
From: BobHelt at aol.com
Sent: 1/4/2012 8:56
To: 62vair at gmail.com; hmlinc at sbcglobal.net; gsteve at hammatt.com;
corvairs at cybrus.net; virtualvairs at corvair.org
Subject: Re: <VV> Fw: Motor Oil

  Mark,
But these might have been in the same or better condition without any added
ZDDP. So what you are saying is that the added ZDDP did no damage.
Regards,
Bob Helt

 In a message dated 1/4/2012 9:49:56 A.M. US Mountain Standard Time,
62vair at gmail.com writes:

Bob, Experience in using the product myself and then looking at cams after
break in and normal use.
Mark Durham