{"id":4674,"date":"2025-06-12T09:13:36","date_gmt":"2025-06-12T09:13:36","guid":{"rendered":"https:\/\/terzolubricant.com\/?p=4674"},"modified":"2026-07-13T12:24:14","modified_gmt":"2026-07-13T04:24:14","slug":"api-sq-standard-definition-guide","status":"publish","type":"post","link":"https:\/\/terzooil.com\/vn\/insights\/api-sq-standard-definition-guide\/","title":{"rendered":"H\u01b0\u1edbng d\u1eabn v\u1ec1 \u0111\u1ecbnh ngh\u0129a ti\u00eau chu\u1ea9n API SQ"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"4674\" class=\"elementor elementor-4674\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d4c50ff e-flex e-con-boxed wpr-particle-no wpr-jarallax-no wpr-parallax-no wpr-sticky-section-no e-con e-parent\" data-id=\"d4c50ff\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;ekit_has_onepagescroll_dot&quot;:&quot;yes&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-cbb997e elementor-widget elementor-widget-heading\" data-id=\"cbb997e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Introduction: What Is API SQ?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-440bfeb elementor-widget elementor-widget-text-editor\" data-id=\"440bfeb\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>C\u00e1i <strong>American Petroleum Institute (API)<\/strong> defines <strong>API SQ<\/strong> as the latest engine oil performance category succeeding API SP. According to API, SQ oils are formulated to protect modern <strong>Turbocharged Gasoline Direct Injection (TGDI)<\/strong> engines from <strong>Low-Speed Pre-Ignition (LSPI)<\/strong>, ensure <strong>Gasoline Particulate Filter (GPF)<\/strong> durability, and improve <strong>ti\u1ebft ki\u1ec7m nhi\u00ean li\u1ec7u<\/strong>. This official definition underscores a rigorous test suite including LSPI sequence, high-temperature shear stability, and deposit control.<br \/><strong><a href=\"https:\/\/www.api.org\/\" target=\"_blank\" rel=\"noopener\"><em>View API\u2019s official web:<\/em><\/a><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-beb13d1 elementor-widget elementor-widget-image\" data-id=\"beb13d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"640\" height=\"241\" src=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/New-API-logo.jpg\" class=\"attachment-full size-full wp-image-4690\" alt=\"New-API-logo\" srcset=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/New-API-logo.jpg 640w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/New-API-logo-300x113.jpg 300w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/New-API-logo-18x7.jpg 18w\" sizes=\"(max-width: 640px) 100vw, 640px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e4beb0 elementor-widget elementor-widget-heading\" data-id=\"0e4beb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">API\u2019s Official Definition and Scope<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c5e04e elementor-widget elementor-widget-text-editor\" data-id=\"3c5e04e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Per API documentation, the SQ category requires:<br \/><strong>1.Sequence X LSPI Test:<\/strong> New protocol to measure resistance to low-speed pre-ignition.<br \/><strong>2.High-Temp High-Shear (HTHS) Viscosity \u2265 2.9 mPa\u00b7s:<\/strong> Maintains oil film under load.<br \/><strong>3.Oxidation Stability:<\/strong> Limits oil degradation at 150\u202f\u00b0C.<br \/><strong>4.Deposit Control:<\/strong> Minimizes piston and turbo deposits.<br \/><strong>5.Sulfated Ash \u2264 0.90%:<\/strong> Ensures GPF and engine protection.<br \/><strong>6.Fuel Economy:<\/strong> Aligns with ILSAC GF-7 efficiency metrics.<br \/>These parameters reflect API\u2019s commitment to reducing emissions and extending engine life in high-performance vehicles.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d954bd elementor-widget elementor-widget-heading\" data-id=\"6d954bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Key Upgrades Over API SP<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-533ddd0 elementor-widget elementor-widget-text-editor\" data-id=\"533ddd0\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>API SQ builds on API SP by adding:<br \/><strong>1.LSPI Protection<\/strong>: Critical for TGDI engines common in global markets.<br \/><strong>2.GPF Compatibility<\/strong>: Lower ash content to protect aftertreatment systems.<br \/><strong>3.More Stringent Oxidation Tests<\/strong>: Improves oil longevity and engine cleanliness.<br \/>Together, these upgrades make <strong>api sq oil<\/strong> the gold standard for next-gen lubricants.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-76bc649 elementor-widget elementor-widget-image\" data-id=\"76bc649\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"729\" height=\"504\" src=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/ILSAC-unveils-GF-8-proposal-API-SQ-named-as-next-category.jpg\" class=\"attachment-full size-full wp-image-4691\" alt=\"ILSAC-unveils-GF-8-proposal-API-SQ-named-as-next-category\" srcset=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/ILSAC-unveils-GF-8-proposal-API-SQ-named-as-next-category.jpg 729w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/ILSAC-unveils-GF-8-proposal-API-SQ-named-as-next-category-300x207.jpg 300w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/ILSAC-unveils-GF-8-proposal-API-SQ-named-as-next-category-18x12.jpg 18w\" sizes=\"(max-width: 729px) 100vw, 729px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c66fdbc elementor-widget elementor-widget-heading\" data-id=\"c66fdbc\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">TERZO\u2019s API SP Engine Oils<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-baa5021 elementor-widget elementor-widget-text-editor\" data-id=\"baa5021\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>TERZO leverages API\u2019s data-driven approach to develop <strong>api sp engine oil<\/strong> offerings:<br \/><a href=\"https:\/\/terzooil.com\/vn\/lubricant\/5w-30-fully-synthetic-engine-oil-4l\/\"><strong>SynthGen Series<\/strong>: <\/a>Ester-enhanced base oils delivering exceptional HTHS resistance.<br \/><a href=\"https:\/\/terzooil.com\/vn\/lubricant\/10w-40-four-stroke-motorcycle-oil\/\"><strong>4T Super 10W-40 Blend<\/strong>:<\/a> Tailored for motorcycle and small-engine applications needing LSPI mitigation.<br \/><a href=\"https:\/\/terzooil.com\/vn\/lubricant\/5w-30-fully-synthetic-engine-oil\/\"><strong>Multipure 5W-30 GPF-Safe<\/strong>:<\/a> Ideal for passenger cars with pump-injector diesel engines.<br \/><em>Explore our <a href=\"https:\/\/terzooil.com\/vn\/product-terzo-manufacturing\/\"><strong>Products<\/strong><\/a> for API qualified lubricants.<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4463747 elementor-widget elementor-widget-image\" data-id=\"4463747\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/05\/terzo-full-engine-oil-lubricant-production-1.jpg\" title=\"\" alt=\"terzo full engine oil lubricant production\" loading=\"lazy\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bf31148 elementor-widget elementor-widget-heading\" data-id=\"bf31148\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Real-World Applications in Global Markets<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8556c8 elementor-widget elementor-widget-text-editor\" data-id=\"b8556c8\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>API SQ<\/strong> oils excel in:<br \/><strong>1.African logistics fleets<\/strong> tackling extreme heat.<br \/><strong>2.Southeast Asian urban buses<\/strong> facing stop-start traffic.<br \/><strong>3.South American mining equipment<\/strong> operating under heavy load.<br \/><strong>4.Central Asian construction machinery<\/strong> enduring altitude and dust.<br \/>By adopting <strong>api sq oil<\/strong>, operators reduce maintenance costs and meet emerging emission mandates.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7b823da elementor-widget elementor-widget-image\" data-id=\"7b823da\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1200\" height=\"581\" src=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way.jpg\" class=\"attachment-full size-full wp-image-4692\" alt=\"havolines-legacy-paves-the-way\" srcset=\"https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way.jpg 1200w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way-300x145.jpg 300w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way-1024x496.jpg 1024w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way-768x372.jpg 768w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way-18x9.jpg 18w, https:\/\/terzooil.com\/wp-content\/uploads\/2025\/06\/havolines-legacy-paves-the-way-800x387.jpg 800w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" title=\"\">\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4931936 elementor-widget elementor-widget-heading\" data-id=\"4931936\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Implementation &amp; Distributor Support<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-28f9bdd elementor-widget elementor-widget-text-editor\" data-id=\"28f9bdd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;ekit_we_effect_on&quot;:&quot;none&quot;}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>TERZO assists distributors with:<br \/><strong>1.API SQ training workshops<\/strong>: On-site and virtual seminars.<br \/><strong>2.Supply chain optimization<\/strong>: Local warehousing in Lagos, Jakarta, and Bogot\u00e1.<br \/><strong>3.Marketing materials<\/strong>: Co-branded collateral highlighting SQ benefits.<br \/><em><strong><a href=\"https:\/\/terzooil.com\/vn\/contact-us-about-terzo-lubricant\/\">Contact our <\/a><\/strong><\/em><strong><em><a href=\"https:\/\/terzooil.com\/vn\/contact-us-about-terzo-lubricant\/\">Services<\/a><\/em><\/strong><em><strong><a href=\"https:\/\/terzooil.com\/vn\/contact-us-about-terzo-lubricant\/\"> team<\/a><\/strong> to get started.<\/em><br \/>C\u00e1i <strong>API SQ<\/strong> standard represents a pivotal advancement in lubricant technology. By integrating API\u2019s official definitions and test methods, TERZO\u2019s <strong>API SQ engine oils<\/strong> deliver unmatched LSPI protection, GPF compatibility, and fuel efficiency for global users.<br \/>Stay ahead\u2014equip your fleet and customers with API SQ\u2013certified solutions from TERZO.<br \/><em><strong><a href=\"https:\/\/terzooil.com\/vn\/terzo-your-trust-lubricant-partner\/\" data-type=\"link\" data-id=\"https:\/\/terzooil.com\/terzo-your-trust-lubricant-partner\/\">Learn more about <\/a><\/strong><\/em><strong><em><a href=\"https:\/\/terzooil.com\/vn\/terzo-your-trust-lubricant-partner\/\" data-type=\"link\" data-id=\"https:\/\/terzooil.com\/terzo-your-trust-lubricant-partner\/\">TERZO<\/a><\/em><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Introduction: What Is API SQ? The American Petroleum Institute (API) defines API SQ as the latest engine oil performance category succeeding API SP. According to API, SQ oils are formulated to protect modern Turbocharged Gasoline Direct Injection (TGDI) engines from Low-Speed Pre-Ignition (LSPI), ensure Gasoline Particulate Filter (GPF) durability, and improve fuel economy. This official definition underscores a rigorous test suite including LSPI sequence, high-temperature shear stability, and deposit control.View API\u2019s official web: API\u2019s Official Definition and Scope Per API documentation, the SQ category requires:1.Sequence X LSPI Test: New protocol to measure resistance to low-speed pre-ignition.2.High-Temp High-Shear (HTHS) Viscosity \u2265 2.9 mPa\u00b7s: Maintains oil film under load.3.Oxidation Stability: Limits oil degradation at 150\u202f\u00b0C.4.Deposit Control: Minimizes piston and turbo deposits.5.Sulfated Ash \u2264 0.90%: Ensures GPF and engine protection.6.Fuel Economy: Aligns with ILSAC GF-7 efficiency metrics.These parameters reflect API\u2019s commitment to reducing emissions and extending engine life in high-performance vehicles. Key Upgrades Over API SP API SQ builds on API SP by adding:1.LSPI Protection: Critical for TGDI engines common in global markets.2.GPF Compatibility: Lower ash content to protect aftertreatment systems.3.More Stringent Oxidation Tests: Improves oil longevity and engine cleanliness.Together, these upgrades make api sq oil the gold standard for next-gen lubricants. TERZO\u2019s API SP Engine Oils TERZO leverages API\u2019s data-driven approach to develop api sp engine oil offerings:SynthGen Series: Ester-enhanced base oils delivering exceptional HTHS resistance.4T Super 10W-40 Blend: Tailored for motorcycle and small-engine applications needing LSPI mitigation.Multipure 5W-30 GPF-Safe: Ideal for passenger cars with pump-injector diesel engines.Explore our Products for API qualified lubricants. Real-World Applications in Global Markets API SQ oils excel in:1.African logistics fleets tackling extreme heat.2.Southeast Asian urban buses facing stop-start traffic.3.South American mining equipment operating under heavy load.4.Central Asian construction machinery enduring altitude and dust.By adopting api sq oil, operators reduce maintenance costs and meet emerging emission mandates. Implementation &amp; Distributor Support TERZO assists distributors with:1.API SQ training workshops: On-site and virtual seminars.2.Supply chain optimization: Local warehousing in Lagos, Jakarta, and Bogot\u00e1.3.Marketing materials: Co-branded collateral highlighting SQ benefits.Contact our Services team to get started.The API SQ standard represents a pivotal advancement in lubricant technology. By integrating API\u2019s official definitions and test methods, TERZO\u2019s API SQ engine oils deliver unmatched LSPI protection, GPF compatibility, and fuel efficiency for global users.Stay ahead\u2014equip your fleet and customers with API SQ\u2013certified solutions from TERZO.Learn more about TERZO<\/p>","protected":false},"author":1,"featured_media":4692,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[40,39],"tags":[],"class_list":["post-4674","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-oil-academy","category-market-insights"],"_links":{"self":[{"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/posts\/4674","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/comments?post=4674"}],"version-history":[{"count":1,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/posts\/4674\/revisions"}],"predecessor-version":[{"id":15768,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/posts\/4674\/revisions\/15768"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/media\/4692"}],"wp:attachment":[{"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/media?parent=4674"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/categories?post=4674"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/terzooil.com\/vn\/wp-json\/wp\/v2\/tags?post=4674"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}