{"id":306,"date":"2020-05-05T09:40:23","date_gmt":"2020-05-05T16:40:23","guid":{"rendered":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/?p=306"},"modified":"2020-05-06T16:25:47","modified_gmt":"2020-05-06T23:25:47","slug":"yes-its-a-thing-vintage-oil","status":"publish","type":"post","link":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/2020\/05\/05\/yes-its-a-thing-vintage-oil\/","title":{"rendered":"YES, IT&#8217;S A THING &#8211; VINTAGE OIL!"},"content":{"rendered":"<h2>I am reliably informed by John Turney, a retired chemical engineer, as follows:<\/h2>\n<h2><strong>&#8220;The limits on ZDTP (actually the phosphorous portion of ZDTP) started with API SG oils. The use of ZDTP started about 1935. So, it [my vintage oil] is perfect for Austin engines.<\/strong><\/h2>\n<h2><strong>&#8220;The current 20W-50 VR-1 has sufficient ZDTP because of a sort-of loophole in the specifications. Oils with a viscosity of SAE 40 and above don&#8217;t have the low phosphorus limits because catalyst-equipped cars don&#8217;t use high-viscosity oils.&#8221;<\/strong><\/h2>\n<h2><img loading=\"lazy\" class=\"alignnone wp-image-307\" src=\"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-content\/uploads\/2020\/05\/DSC02583-300x206.jpg\" alt=\"\" width=\"600\" height=\"412\" srcset=\"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-content\/uploads\/2020\/05\/DSC02583-300x206.jpg 300w, https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-content\/uploads\/2020\/05\/DSC02583-1024x703.jpg 1024w, https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-content\/uploads\/2020\/05\/DSC02583-768x527.jpg 768w, https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-content\/uploads\/2020\/05\/DSC02583-1536x1055.jpg 1536w, https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-content\/uploads\/2020\/05\/DSC02583.jpg 1800w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/h2>\n<h2>So there we have it.\u00a0 Oils with an &#8220;API Service&#8221; rating earlier than SG, such as the SE and SF of my vintage oil (label on the back), don&#8217;t have the reduced phosphorus levels, so &#8220;it&#8217;s perfect for Austin engines.&#8221;<\/h2>\n<h2>So now when some wise guy makes a crack about how the car may look all original, &#8220;But does it have original fluids?!?&#8221; I can respond with, &#8220;Funny you should ask&#8230;&#8221;<\/h2>\n<h2><\/h2>\n","protected":false},"excerpt":{"rendered":"<p>I am reliably informed by John Turney, a retired chemical engineer, as follows: &#8220;The limits on ZDTP (actually the phosphorous portion of ZDTP) started with API SG oils. The use of ZDTP started about 1935. So, it [my vintage oil] &hellip; <a href=\"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/2020\/05\/05\/yes-its-a-thing-vintage-oil\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/posts\/306"}],"collection":[{"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/comments?post=306"}],"version-history":[{"count":4,"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/posts\/306\/revisions"}],"predecessor-version":[{"id":311,"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/posts\/306\/revisions\/311"}],"wp:attachment":[{"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/media?parent=306"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/categories?post=306"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.britishcarforum.com\/Healey-Oregon\/wp-json\/wp\/v2\/tags?post=306"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}