Tom, I understand that this type of additive does not bond with the oil and can leave deposits in some unwanted and wasted places like the filter and oil pan, rocker arms, pushrods, and so on. A processed and formulated oil with ZDDP zinc and other agents such as Kendall GR-1 High Performance (in various weights) costs just 3.65 per quart. Does this make more sense to you? J D Jung Retromobilia.net ----- Original Message ----- From: "Tom Chvapil" <tchvapil@xxxxxxxxxxxxx> To: Chrysler300@xxxxxxxxxxxxxxx Sent: Sunday, November 14, 2010 7:49:51 AM Subject: [Chrysler300] Chrysler 300 oil Actually, right now Eastwood has 4oz ZDDP listed on e bay for $6.95, with free shipping. I use it a lot and this is probably the best price I have seen anywhere. Tom Chvapil Tucson,Az tchvapil@xxxxxxxxxxxxx [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/