Vanagon EuroVan
Previous messageNext messagePrevious in topicNext in topicPrevious by same authorNext by same authorPrevious page (December 2011, week 1)Back to main VANAGON pageJoin or leave VANAGON (or change settings)ReplyPost a new messageSearchProportional fontNon-proportional font
Date:         Sat, 3 Dec 2011 07:59:44 -0500
Reply-To:     Dennis Haynes <d23haynes57@HOTMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Dennis Haynes <d23haynes57@HOTMAIL.COM>
Subject:      Re: Vanagon engine noise - collapsed lifter?
Comments: To: Michael Snow <slowmachine82@GMAIL.COM>
In-Reply-To:  <4EDA092D.9090104@gmail.com>
Content-Type: text/plain; charset="utf-8"

The excess ZDDP also destroys the O2 sensors.

Dennis

-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Michael Snow Sent: Saturday, December 03, 2011 6:34 AM To: vanagon@GERRY.VANAGON.COM Subject: Re: Vanagon engine noise - collapsed lifter?

Far better to use an authoritative source for this info:

http://www.mobiloil.com/Search/Search.aspx?site=mobil&output=xml_no_dtd&client=default_frontend&BCL=%2FUSA-English%2FMotorOil&la=en&km=mobiloil&show_km=y&as_q=inurl%3A%2FUSA-English%2FMotorOil&css=mobiloil&filter=0&ie=ISO-8859-1&oe=UTF-8&lr=lang_en&getfields=description&q=zinc&go.x=0&go.y=0

Our engines do not need zinc, they need phosphorous. Zinc dialkyldithiophosphate (ZDDP) just happens to be the least expensive and most effective vehicle for delivering that phosphorous. Zinc will damage the catalytic converter, and this damage is the sole reason for the reduction of ZDDP in the current crop of oils. Oils with high ZDDP content are still available for racing and other off-highway use, where catalytic converters are not used.

Mike

On 12/03/2011 02:28 AM, Scott Daniel - Turbovans wrote: > I personally can not say how much high zinc formulation oil can harm > or not harm a cat, but I bet the affect is very minimal on the cat > ....just my hunch.


Back to: Top of message | Previous page | Main VANAGON page

Please note - During the past 17 years of operation, several gigabytes of Vanagon mail messages have been archived. Searching the entire collection will take up to five minutes to complete. Please be patient!


Return to the archives @ gerry.vanagon.com


The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.

Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.