[Spridgets] ZDDP [Fwd: RE: Rotella Ask Our Expert: Switching Oils]

David Woerpel dwoerpel at wi.net
Mon Aug 20 08:41:49 MDT 2007


Here is a response to my letter in regards to Rotella T as a substitute 
for low ZDDP oil.
Dave
59 :{)
59 MGA 1500
05 MCS
Burlington WI

-------- Original Message --------
Subject: 	RE: Rotella Ask Our Expert: Switching Oils
Date: 	Mon, 20 Aug 2007 09:27:55 -0500
From: 	<AskShell at Shell.com>
To: 	<dwoerpel at wi.net>



David, Rotella T with Triple Protection 15W-40 CJ-4 has approximately 1200 ppm zinc (ZDDP). This is 50% more zinc than current passenger car motor oils which contain approximately 800 ppm zinc. Passenger car motor oils had approximately 1200 ppm zinc prior to 2001. In 2001 the zinc in passenger car motor oils was reduced to 1000 ppm and in 2005 reduced again to the current 800 ppm. Rotella T with Triple Protection 15W-40 does have a gasoline rating of SM (not energy conserving GF-4, would void a new car warranty).

http://www.shellusserver.com/products/pdf/RotellaT(CJ-4).pdf

http://www.api.org/certifications/engineoil/categories/upload/EngineOilGuide2006.pdf
 
Thus, the new Rotella T with Triple Protection 15W-40 CJ-4 has the same zinc anti-wear content that passenger car motor oils had in 2000 before the current problems with flat tappet engine began. Rotella T oils should work well in your older British cars. 

Richard Moore
Staff Engineer
Shell Global Solutions (US) Inc.
Westhollow Technology Center, PO Box 4327, Houston, TX 77210, United States of America
1-800-231-6950

-----Original Message-----
From: dwoerpel at wi.net [mailto:dwoerpel at wi.net]
Sent: Friday, August 17, 2007 11:40 PM
To: askshell, SLUBE-GSMR/5
Subject: Rotella Ask Our Expert: Switching Oils


------------------------------------------------
ROTELLA.com E-mail Form
------------------------------------------------
NAME               David Woerpel
E-MAIL ADDRESS     dwoerpel at wi.net
SUBJECT            Switching Oils
COMMENTS
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Now that ZDDP has been decreased in gasoline engine oils, what oils are applicable on my 1959 British cars?  I have been told Rotella T for diesel engines would work.  Is this true?  Any drawbacks?
Thanks,
Dave
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