Just to clarify a point. I used very high detergent motor oil (Mobil Delvac, diesel engine oil) since the 50s in every car I've owned until a couple of years ago. Suffered no engine damage, premature wear, or problems of any sort. Actually, quite the opposite. I worked for, then managed, a large petroleum distributorship for many years -- that's how I got onto the beneficial results from using Delvac. Delvac and Rotella are nearly identical products. Mike ----- Original Message ----- From: MARK HOPKINS To: David Schwandt Cc: jpeabo@xxxxxxxxxxx ; RICK AND DEBBIE CLAPHAM ; Rich Barber ; chrysler300@xxxxxxxxxxxxxxx Sent: Thursday, January 10, 2013 4:24 PM Subject: Re: [Chrysler300] Zincified oil for a C-300? There is a product advertised in Mopar Collector Guide called Z-Alt Muscle Car Oil, which their website www.z-alt.com states is specially blended with ZDDP for pre-1975 vehicles without catalytic converters. It's a bit pricey, but purports to be more suitable for old engines than modern racing oils (correct detergent levels / less paraffin etc.). It's real petroleum, not synthetic. Has anyone used it? It appears to be closest to the mark in meeting what we need in old car engines, but I haven't seen any reviews on it. A note about Rotella - not only has the ZDDP been reduced to minimal levels; being formulated specifically for diesel engines, it has a very high detergent content, not necessarily beneficial for old engines made from the softer alloys of the 50's and 60's. Best wishes to all for a great 2013! Mark in Calgary (flying out of all this snow for Scottsdale on Saturday!) ----- Original Message ----- From: "David Schwandt" finsruskw@xxxxxxxxxxxxxxx> To: "RICK AND DEBBIE CLAPHAM" rixpac@xxxxxxx>, "Rich Barber" c300@xxxxxxx>, chrysler300@xxxxxxxxxxxxxxx Cc: jpeabo@xxxxxxxxxxx Sent: Thursday, January 10, 2013 5:24:54 AM Subject: RE: [Chrysler300] Zincified oil for a C-300? I'd swear by Kendall. Used it for 30 years in all my class 8 rigs. Dave Schwandt -----Original Message----- From: Chrysler300@xxxxxxxxxxxxxxx [mailto: Chrysler300@xxxxxxxxxxxxxxx ] On Behalf Of RICK AND DEBBIE CLAPHAM Sent: Wednesday, January 09, 2013 10:23 PM To: Rich Barber; chrysler300@xxxxxxxxxxxxxxx Cc: jpeabo@xxxxxxxxxxx Subject: RE: [Chrysler300] Zincified oil for a C-300? Brad Penn and Kendall are the same company, Good oil lots of ZDDP. STP was loaded with ZDDP I haven't seen any lately here in Colorado. . To: chrysler300@xxxxxxxxxxxxxxx CC: jpeabo@xxxxxxxxxxx From: c300@xxxxxxx Date: Tue, 8 Jan 2013 23:30:50 -0800 Subject: [Chrysler300] Zincified oil for a C-300? John Peabody was trying to get this message on the server. I've seen some high-zinc oil and additives advertised but have not kept the information handy. Anyone having a good answer for John, please send it to him at: jpeabo@xxxxxxxxxxx Rich Barber Has the 300 group come up with a zinc replacement or a zinc additive for our flat tappet brutes? Everything I come up with is a synthetic oil or a blend. I stored my C-300 without changing the oil knowing I'll have till spring to come up with an oil or a zinc add. My friend added synthetic oil in his Chevy 409 and sprouted leaks. My Chrysler is the only car I have, new or old, that doesn't leak and I want to keep it that way. The right choice should work for the 'old man' or the 'hot rodder' type driver. Thanks, John and Nancy Peabody [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 [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/