Jon37 Posted April 12, 2007 Share Posted April 12, 2007 I'm sure there must have been an active discussion here in the recent past, concerning the removal of the zinc in motor oils, and the possible harmful effect on engines without roller bearings on their valve lifters... but I can't find anything on "SEARCH".Could someone please steer me to this discussion? The subject came up at our local AACA meeting last night, and I'm a bit concerned. Seems like the only safe motor oil for our older cars, may be "diesel" oil. I need to know more! Link to comment Share on other sites More sharing options...
MCHinson Posted April 12, 2007 Share Posted April 12, 2007 It was just a short distance down the page in this topic area: Click hereIt is titled: New oils in flat tappet engines - ZDDP Link to comment Share on other sites More sharing options...
Jon37 Posted April 12, 2007 Author Share Posted April 12, 2007 Thank you! Link to comment Share on other sites More sharing options...
ted sweet Posted April 12, 2007 Share Posted April 12, 2007 that topic just notes that nobody agrees on this issue. Link to comment Share on other sites More sharing options...
Guest 70 Electra Posted November 17, 2009 Share Posted November 17, 2009 (edited) .........concerning the removal of the zinc in motor oils, and the possible harmful effect on engines without roller bearings on their valve lifters... I need to know more!Just to clarify, the "zinc" was NOT removed from the newer oils, it was merely reduced slightly. There is much hysteria about this, but very little of it has a basis in fact.I encourage you to read my recent (11-17-2009) posting on this subject in the BCA General forum.http://forums.aaca.org/f115/motor-oil-zinc-other-myths-272260.htmlThanks,Greg Edited November 17, 2009 by 70 Electra added link to new topic (see edit history) Link to comment Share on other sites More sharing options...
Guest Bob Call Posted November 18, 2009 Share Posted November 18, 2009 See thread titled Zinc Dialkyl Dithio Phosphate Link to comment Share on other sites More sharing options...
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