{"id":33175,"date":"2026-07-28T10:00:00","date_gmt":"2026-07-28T10:00:00","guid":{"rendered":"https:\/\/americanpetroleumpr.com\/?p=33175"},"modified":"2026-07-29T20:03:02","modified_gmt":"2026-07-29T20:03:02","slug":"api-sq-gf-7-certification","status":"publish","type":"post","link":"https:\/\/americanpetroleumpr.com\/en\/api-sq-gf-7-certification\/","title":{"rendered":"API SQ\/GF-7 certification: meaning and why it matters for your engine"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><strong>API SQ succeeds the previous API SP category as the most recent standard for gasoline engine oils<\/strong>. It took effect on March 31, 2025, and establishes performance standards for passenger vehicle oils.<\/p>\n\n\n\n<!--more-->\n\n\n\n<p class=\"wp-block-paragraph\">Meanwhile, <strong>ILSAC GF-7, divided into GF-7A and GF-7B, defines the minimum performance standards for gasoline engine oils<\/strong> in passenger vehicles, including efficiency, wear protection, and control of internal deposits.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">To inquire about the availability and prices of certified products, please contact the American Petroleum team at <a href=\"tel:+1%20787-794-1985\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">(787) 794-1985<\/a> or by email at <a href=\"mailto:info@americanpetroleumpr.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">info@americanpetroleumpr.com<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Who is the American Petroleum Institute?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The American Petroleum Institute (API) is the <strong>leading organization in the development of technical standards for the petroleum, gas, and lubrication industry<\/strong>. With over 100 years of experience, the API sets standards that guarantee safety, efficiency, and performance in energy and automotive products.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Its certifications are recognized globally as a <strong>seal of trust<\/strong>, both by engine manufacturers and consumers looking for products of proven quality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">What Is API SQ?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"442\" src=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Petroleum-Institute-1024x442.jpg\" alt=\"American Petroleum Institute\" class=\"wp-image-33170\" style=\"width:600px\" srcset=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Petroleum-Institute-1024x442.jpg 1024w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Petroleum-Institute-300x130.jpg 300w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Petroleum-Institute-768x332.jpg 768w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Petroleum-Institute-1536x664.jpg 1536w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Petroleum-Institute-2048x885.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">In the API service categories, the letter S identifies oils intended for gasoline engines. The second letter identifies the category within this classification. API SQ is the most recent category and succeeds API SP.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">API SQ incorporates updated requirements for protection against low-speed pre-ignition (LSPI) with both new oil and oil that has aged from use.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">API describes SQ as a category designed to provide protection against LSPI with both fresh and aged oil, improve timing chain protection, and control deposits, sludge, and varnish.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Identifying Symbols on the Container<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The symbols on the container help identify key aspects of the oil:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>API Donut<\/strong>: Shows the service category, such as API SQ, and the SAE viscosity grade.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"600\" height=\"351\" src=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Donut.jpg\" alt=\"Sello API Donut\" class=\"wp-image-35351\" style=\"width:600px\" srcset=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Donut.jpg 600w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Donut-300x176.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>API Starburst<\/strong>: Identifies oils that meet ILSAC GF-7A.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"600\" height=\"310\" src=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Stardust.jpg\" alt=\"Sello API Starburst\" class=\"wp-image-35347\" style=\"width:600px\" srcset=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Stardust.jpg 600w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Stardust-300x155.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>API Shield<\/strong>: Identifies SAE 0W-16 oils that meet ILSAC GF-7B.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"343\" src=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Shield.jpg\" alt=\"Sello API Shield\" class=\"wp-image-35349\" style=\"width:600px\" srcset=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Shield.jpg 600w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Sello-API-Shield-300x172.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Before selecting an oil, always check the recommended viscosity and category in the vehicle\u2019s owner\u2019s manual.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">API SQ vs. API SP: what changed?<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Feature<\/strong><\/td><td><strong>API SP (prev.)<\/strong><\/td><td><strong>API SQ\/GF-7 (new)<\/strong><\/td><td><strong>ILSAC Equivalent<\/strong><\/td><\/tr><tr><td>LSPI Protection<\/td><td>Protects against LSPI in turbocharged engines according to SP specifications<\/td><td>Updated protection against LSPI with new and aged oil<\/td><td>GF-6A\/GF-6B \u2192 GF-7A\/GF-7B<\/td><\/tr><tr><td>Fuel Economy<\/td><td>Meets fuel economy requirements according to GF-6 Resource Conserving<\/td><td>Improved fuel efficiency in accordance with GF-7 Resource Conserving<\/td><td>GF-6A\/GF-6B \u2192 GF-7A\/GF-7B<\/td><\/tr><tr><td>Timing chain protection<\/td><td>Protects the timing chain in modern engines<\/td><td>Enhanced protection for high-load motors<\/td><td>\u2014<\/td><\/tr><tr><td>Oxidation control<\/td><td>Meets SP standards<\/td><td>Meets API SQ standards; no verifiable overall difference compared to SP<\/td><td>\u2014<\/td><\/tr><tr><td>Backward compatible<\/td><td>Compatible with engines that required earlier categories<\/td><td>Compatible with engines that required SP; replaces SP where applicable<\/td><td>\u2014<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">API SQ\/GF-7 benefits: what you actually get<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">API recently introduced the API SQ\/GF-7 category, designed for the most modern passenger car motor oils (PCMO). This specification was developed in conjunction with ILSAC (International Lubricants Standardization and Approval Committee), an international body that collaborates in the standardization of lubricants for gasoline engines.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The acronyms used in this certification have an important meaning:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>API<\/strong>. American Petroleum Institute, responsible for developing the standards.<\/li>\n\n\n\n<li><strong>SQ<\/strong>. The most recent category of gasoline engine oils, replacing the previous \u201cSP\u201d category, with higher protection requirements.<\/li>\n\n\n\n<li><strong>GF-7<\/strong>. Seventh generation of international standards for gasoline-fueled engine oils, focused on improving efficiency and durability.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Among the <strong>main benefits of the new API SQ\/GF-7 certification<\/strong> are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Reduced engine wear<\/strong> thanks to advanced formulations.<\/li>\n\n\n\n<li><strong>Greater internal cleanliness<\/strong>, with better control of deposits and sludge.<\/li>\n\n\n\n<li><strong>Optimized fuel consumption<\/strong>, improving mileage.<\/li>\n\n\n\n<li><strong>Protection against low-speed pre-ignition<\/strong> (LSPI), common in modern turbocharged engines.<\/li>\n\n\n\n<li><strong>Reliable performance in a variety of driving conditions<\/strong>, from city traffic to long highway trips.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">In addition, the API has updated its Motor Oil Guide 2025 to include the marks that identify these products: the star (Starburst) for GF-7A and the shield (Shield) for GF-7B, making it easier for consumers to recognize certified oils on the market.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">API SQ oils available at American Petroleum<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><a href=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/American-Quality-Lubricants-Final.pdf\" target=\"_blank\" rel=\"noreferrer noopener\"><img loading=\"lazy\" decoding=\"async\" width=\"546\" height=\"278\" src=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Catalogo-de-productos-de-American-Quality-Lubricants.jpg\" alt=\"Cat\u00e1logo de productos de American Quality Lubricants\" class=\"wp-image-29411\" srcset=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Catalogo-de-productos-de-American-Quality-Lubricants.jpg 546w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/Catalogo-de-productos-de-American-Quality-Lubricants-300x153.jpg 300w\" sizes=\"(max-width: 546px) 100vw, 546px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Some products in <a href=\"https:\/\/americanpetroleumpr.com\/en\/\" target=\"_blank\" rel=\"noreferrer noopener\">American Petroleum<\/a>\u2019s portfolio meet API SQ and\/or ILSAC GF-7 certifications, including <a href=\"https:\/\/americanpetroleumpr.com\/en\/lubricants-in-puerto-rico\/\" target=\"_blank\" rel=\"noreferrer noopener\">specific oil lines<\/a> from Petro-Canada and Phillips 66. Certified products and viscosities may vary, so it is important to confirm availability internally before placing orders.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"768\" height=\"1024\" src=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/API-SQGF-7-Products-768x1024.jpg\" alt=\"API SQGF-7 Products\" class=\"wp-image-35353\" style=\"width:600px\" srcset=\"https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/API-SQGF-7-Products-768x1024.jpg 768w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/API-SQGF-7-Products-225x300.jpg 225w, https:\/\/americanpetroleumpr.com\/wp-content\/uploads\/API-SQGF-7-Products.jpg 1024w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">To inquire about products, viscosities, and availability, please contact the American Petroleum team at <a href=\"tel:+1%20787-794-1985\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">(787) 794-1985<\/a> or via email at <a href=\"mailto:info@americanpetroleumpr.com\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">info@americanpetroleumpr.com<\/a>. The team can help you select the most suitable option based on the specifications of your vehicle or fleet.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><u>Sources<\/u><\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>American Petroleum Institute. Engine Oil Licensing and Certification System (EOLCS): Motor Oil Guide 2025. API, 2025,<a href=\"http:\/\/www.api.org\/products-and-services\/engine-oil\/eolcs-categories-and-classifications\" target=\"_blank\" rel=\"noopener\"> www.api.org\/products-and-services\/engine-oil\/eolcs-categories-and-classifications<\/a>.<\/li>\n\n\n\n<li>American Petroleum Institute. Certification Directories and Updates. API, 2025,<a href=\"http:\/\/www.api.org\/products-and-services\/engine-oil\" target=\"_blank\" rel=\"noopener\"> www.api.org\/products-and-services\/engine-oil<\/a>.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>API SQ succeeds the previous API SP category as the most recent standard for gasoline engine oils. It took effect on March 31, 2025, and establishes performance standards for passenger vehicle oils.<\/p>\n","protected":false},"author":1,"featured_media":33182,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[95],"tags":[],"class_list":["post-33175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lubricants-oils"],"_links":{"self":[{"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/posts\/33175","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/comments?post=33175"}],"version-history":[{"count":5,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/posts\/33175\/revisions"}],"predecessor-version":[{"id":35356,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/posts\/33175\/revisions\/35356"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/media\/33182"}],"wp:attachment":[{"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/media?parent=33175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/categories?post=33175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/americanpetroleumpr.com\/en\/wp-json\/wp\/v2\/tags?post=33175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}