I was under the impression that ZDDP is important only with solid lifters which is why (considering the relatively small number of solid lifter cars in full service) the oil makers were willing to pull it out.
$9.37/qt is ~$1/qt more than I paid for M1 the other day although I did have to also pay tax. They just put an Autozone near here just over the NH border, goodbye tax on motor oil... -Curt Date: Sun, 3 Jul 2011 14:22:00 -0400 From: "Larry" <l02tur...@comcast.net> To: "Mercedes Discussion List" <mercedes@okiebenz.com> Subject: Re: [MBZ] M1 15w50 Message-ID: <D6A9670B55014A3BA4616F08E5527502@Acer> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=original For my last change on the '91 300D I went with Brad Penn 15W40 from LN Engineering. So far so good but all I have to go on is the pressure at idle - which looks better than before - but there are so many variables it's not a great gauge. I'll run a test on it before long and see what the ZDDP levels look like after ~2000 miles or so. I think the cost to have 2 gallons plus shipping (Pa to Va) to my door was around $75. LarryT 91 300D Youroil.net _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com