{"id":4976,"date":"2025-11-08T21:14:30","date_gmt":"2025-11-08T17:44:30","guid":{"rendered":"https:\/\/endlesspetro.com\/?post_type=product&#038;p=4976"},"modified":"2026-01-06T17:09:54","modified_gmt":"2026-01-06T13:39:54","slug":"base-oil-pao4","status":"publish","type":"product","link":"https:\/\/endlesspetro.com\/en\/product\/base-oil-pao4\/","title":{"rendered":"Base Oil PAO4"},"content":{"rendered":"<p dir=\"ltr\"><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-4793\" src=\"https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12.jpg\" alt=\" \u0631\u0648\u063a\u0646 \u067e\u0627\u06cc\u0647 4cst \" width=\"1700\" height=\"2200\" srcset=\"https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12.jpg 1700w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-232x300.jpg 232w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-791x1024.jpg 791w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-768x994.jpg 768w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-1187x1536.jpg 1187w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-1583x2048.jpg 1583w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-600x776.jpg 600w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-1200x1553.jpg 1200w, https:\/\/endlesspetro.com\/wp-content\/uploads\/2025\/11\/12-150x194.jpg 150w\" sizes=\"(max-width: 1700px) 100vw, 1700px\" \/><\/p>\n<h3 dir=\"ltr\"><strong>Product Overview<\/strong><\/h3>\n<p dir=\"ltr\">PAO4 (Polyalphaolefin 4) is a high-quality advanced synthetic base oil, classified as Group III+ or Group IV. Produced via \u03b1-olefin polymerization, it offers exceptional purity, thermal stability, and viscosity properties, ranking among the best synthetic oils globally.<\/p>\n<p dir=\"ltr\">Compared to conventional mineral oils, PAO4 performs exceptionally well under extreme heat and severe cold, making it ideal for high-performance industrial and engine lubricants.<\/p>\n<h3 dir=\"ltr\"><strong>Key Technical Properties (ASTM Standards)<\/strong><\/h3>\n<p dir=\"ltr\"><strong>Appearance:<\/strong> Bright &amp; clear<\/p>\n<p dir=\"ltr\"><strong>Color:<\/strong> &lt;0.5 (ASTM D1500) \u2013 very high purity<\/p>\n<p dir=\"ltr\"><strong>Density at 15\u00b0C:<\/strong> ~0.819 kg\/L \u2013 lightweight and pure<\/p>\n<p dir=\"ltr\"><strong>Viscosity at 40\u00b0C:<\/strong> ~17.4 mm\u00b2\/s<\/p>\n<p dir=\"ltr\"><strong>Viscosity at 100\u00b0C:<\/strong> ~3.9 mm\u00b2\/s<\/p>\n<p dir=\"ltr\"><strong>Viscosity Index (VI):<\/strong> 124 \u2013 good temperature stability<\/p>\n<p dir=\"ltr\"><strong>Pour Point:<\/strong> -68\u00b0C \u2013 excellent low-temperature flow<\/p>\n<p dir=\"ltr\"><strong>Flash Point:<\/strong> 222\u00b0C \u2013 safe at high temperatures<\/p>\n<p dir=\"ltr\"><strong>Water Content:<\/strong> 11 ppm \u2013 high purity and oxidation resistance<\/p>\n<p dir=\"ltr\"><strong>Noack Volatility:<\/strong> 13.2% \u2013 controlled high-temperature evaporation<\/p>\n<h3 dir=\"ltr\"><strong>Advantages &amp; Strengths<\/strong><\/h3>\n<ul>\n<li dir=\"ltr\">High thermal and oxidative stability \u2013 suitable for high-temperature applications<\/li>\n<li dir=\"ltr\">Extremely low pour point \u2013 reliable performance below zero with easy starts<\/li>\n<li dir=\"ltr\">Excellent compatibility with additives \u2013 can be combined with anti-wear, antioxidant, and corrosion inhibitors<\/li>\n<li dir=\"ltr\">High cleanliness and purity \u2013 free from sulfur and aromatics, environmentally friendly<\/li>\n<li dir=\"ltr\">Lightweight formulation for better fuel efficiency \u2013 low density and smooth flow<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><strong>Comparison with Other PAOs<\/strong><\/h3>\n<p dir=\"ltr\">Compared to <strong>PAO6<\/strong>, PAO4 has lower viscosity and better low-temperature flow, while PAO6 is suited for heavier thermal applications. <strong>PAO4<\/strong> is ideal for lubricants requiring a balance between cold performance and thermal stability.<\/p>\n<h3 dir=\"ltr\"><strong>Recommended Applications<\/strong><\/h3>\n<ul>\n<li dir=\"ltr\">Modern gasoline and diesel engine oils<\/li>\n<li dir=\"ltr\">Automotive and industrial gear lubricants<\/li>\n<li dir=\"ltr\">Turbine, compressor, and hydraulic oils<\/li>\n<li dir=\"ltr\">Base for semi-synthetic and fully synthetic oils<\/li>\n<li dir=\"ltr\">Light industrial greases and precision lubricants<\/li>\n<\/ul>\n<h3 dir=\"ltr\"><strong>Group III Base Oil Applications<\/strong><\/h3>\n<ol>\n<li dir=\"ltr\"><strong>High Performance Engine Oils<\/strong> \u2013 for modern engines (API SN, SP, ACEA C3), turbocharged and fuel-efficient engines, cost-effective alternative to PAO oils.<\/li>\n<li dir=\"ltr\"><strong>Gear Oils<\/strong> \u2013 automotive and industrial, anti-wear and high thermal stability.<\/li>\n<li dir=\"ltr\"><strong>Specialty Industrial Lubricants<\/strong> \u2013 hydraulic, turbine, compressor, and heat transfer fluids for high-temperature\/high-pressure conditions.<\/li>\n<li dir=\"ltr\"><strong>Semi- and Fully Synthetic Oils<\/strong> \u2013 base for blending with additives; lower-cost alternative to PAO-based formulations.<\/li>\n<li dir=\"ltr\"><strong>Specialty Products<\/strong> \u2013 synthetic greases, bicycle lubricants, precision instruments, specialized medical equipment, eco-friendly lubricants, and some automotive care products.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p dir=\"ltr\"><strong>PAO4 Base Oil<\/strong><\/p>\n<p dir=\"ltr\">PAO4 Base Oil is supplied with premium quality. Produced using advanced technologies, these oils provide exceptional stability and performance. With fast delivery from Salafchegan Customs and cost-effective shipping, they are an ideal choice for bulk purchases.<\/p>\n","protected":false},"featured_media":4878,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[80],"product_tag":[],"class_list":["post-4976","product","type-product","status-publish","has-post-thumbnail","product_cat-base-oil-group-2-3-en","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product\/4976","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/comments?post=4976"}],"version-history":[{"count":5,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product\/4976\/revisions"}],"predecessor-version":[{"id":4998,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product\/4976\/revisions\/4998"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/media\/4878"}],"wp:attachment":[{"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/media?parent=4976"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product_brand?post=4976"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product_cat?post=4976"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/endlesspetro.com\/en\/wp-json\/wp\/v2\/product_tag?post=4976"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}