<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Spot on Bill.</div><div>Both technically and philosophically. <br><br>Alan - from my iPad</div><div><br>On 19 Jun 2015, at 00:58, WILLIAM B LAWRENCE <<a href="mailto:ynotink@msn.com">ynotink@msn.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<div dir="ltr"><br><br><div><hr id="stopSpelling">From: <a href="mailto:ynotink@msn.com">ynotink@msn.com</a><br>To: <a href="mailto:michael.oritt@gmail.com">michael.oritt@gmail.com</a><br>Subject: RE: [Healeys] Oil again<br>Date: Thu, 18 Jun 2015 03:08:45 +0000<br><br>
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<div dir="ltr">I see I'm late to the party on this topic. I was up in the Rocky Mountains participating in the Glenwood Springs Rallye when it started and frankly I wish I still were. However, at the risk of being called ignorant, uninformed, commie pinko or whatever I have a little information that may be of help in sorting out the oil confusion. <div><br></div><div>Engine oil comes in generations as defined by the additive packages which are blended in to tailor them for specific purposes. These generations can be traced by the API codes which are located on the container. </div><div><br></div><div>The API code is two letters found on the label. <span style="font-size:12pt;">The first letter is either a C, which denotes the oil is intended for use in a compression ignition engine, or an S which denotes it is intended for use in a spark ignition engine.</span></div><div><br></div><div>The second letter denotes the type of use intended and follows the development of the internal combustion engine from the most primitive (A) to the most sophisticated (I think they are at O Now). protective amounts of zinc were dropped from the additive package at SM. Any oil before that, or say from SD through SL, still contains zinc.</div><div><br></div><div>It may be true that zinc is not necessary for engines after the camshaft break-in, but I prefer to be cautious on that score so I look for oil that is SL or earlier. I'll let the more informed and adventurous members conduct that experiment...</div><div><br></div><div>Some heavy duty oils such as Chevron Delo or Rotella are rated for both compression ignition and for spark ignition service and will show both a C and an S rating. In some cases those oils will still have an SM or later rating.</div><div><br></div><div>The one oil type I have found that is reliably rated below SM is four stroke motorcycle oil because motorcycles don't have catalysts. Typically it is rated SF or SG. <span style="font-size:12pt;">Since the oil has no way of knowing it is being run in an automotive engine and my Healey doesn't know the oil it's spewing is meant for a motorcycle I have been running Castrol 4T in 20W-50 grade quite happily.</span></div><div><br></div><div>As for the controversy part, if we start banning contentious topics we soon won't have anything to talk about like most modern college campuses.</div><div><br></div><div>Bill Lawrence</div><div>BN1 #554<br><br><div><hr id="ecxstopSpelling">From: <a href="mailto:michael.oritt@gmail.com">michael.oritt@gmail.com</a><br>Date: Sat, 13 Jun 2015 06:14:11 -0400<br>To: <a href="mailto:javrugtman@htcnet.org">javrugtman@htcnet.org</a><br>CC: <a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a><br>Subject: Re: [Healeys] Oil again<br><br><div dir="ltr"><div class="ecxgmail_default" style="color:#3333ff;">We ALWAYS talk about oil and no one seems to have the answer, so we simply keep talking about it. </div><div class="ecxgmail_default" style="color:#3333ff;">For a change let's talk about politics or religion, two topics which are susceptible to absolute rectitude. Many or most of us do not have the correct answers on either and someone here--perhaps an unknown lurker--may choose to now come forward with his or her enlightenment and reveal it to us. <br></div><div class="ecxgmail_default" style="color:#3333ff;"><br></div><div class="ecxgmail_default" style="color:#3333ff;">To mix a metaphor, I now listen with a jaundiced eye.</div><div class="ecxgmail_default" style="color:#3333ff;"><br></div><div class="ecxgmail_default" style="color:#3333ff;">Best--Michael Oritt </div></div><div class="ecxgmail_extra"><br><div class="ecxgmail_quote">On Fri, Jun 12, 2015 at 7:45 PM, John Vrugtman <span dir="ltr"><<a href="mailto:javrugtman@htcnet.org" target="_blank">javrugtman@htcnet.org</a>></span> wrote:<br><blockquote class="ecxgmail_quote" style="border-left:1px #ccc solid;padding-left:1ex;">
<div>
politics and religion, like water and oil, don't mix. On the other
hand, oil and Healeys mix very well.<br>
JAV<span><br>
<br>
<div>On 6/12/2015 7:16 PM, Richard Kahn
wrote:<br>
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<div dir="ltr">I think topics like politics, religion, and oil
should be taboo. There is no best in any of these topics.<br>
Rich Kahn<br>
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