{"id":9253,"date":"2024-08-26T13:06:08","date_gmt":"2024-08-26T09:06:08","guid":{"rendered":"https:\/\/oiltestclub.fanfaro.de\/?post_type=forum&#038;p=9253"},"modified":"2024-09-01T22:17:24","modified_gmt":"2024-09-01T18:17:24","slug":"tecnol-15w-40-acea-e7-vds3mb228-3","status":"publish","type":"forum","link":"https:\/\/oiltestclub.fanfaro.de\/?forum=tecnol-15w-40-acea-e7-vds3mb228-3","title":{"rendered":"TECNOL 15W-40 ACEA E7 VDS3,MB228.3"},"content":{"rendered":"<h4>Technical Conclusion:<\/h4>\n<p>This technical conclusion highlights the non-conformance of the 15W-40 oil concerning its Viscosity Index and after-shear viscosity.<\/p>\n<h4>Viscosity Index (VI):<\/h4>\n<p><strong>Definition:<\/strong> The Viscosity Index is a measure of how much a lubricant&#8217;s viscosity changes with temperature. A higher VI indicates that the oil maintains a more<\/p>\n<p>consistent viscosity across a range of temperatures, which is crucial for effective lubrication in varying operating conditions.<\/p>\n<h4>After Shear Viscosity:<\/h4>\n<p><strong>Definition:<\/strong> After shear viscosity refers to the change in the oil&#8217;s viscosity after it has been subjected to mechanical shear, high temperature, and pressure<\/p>\n<p>conditions. This test simulates the oil&#8217;s performance in an engine over time. Significant viscosity loss indicates that the oil may not provide adequate<\/p>\n<p>protection under prolonged or severe operating conditions.<\/p>\n<h4>Analysis:<\/h4>\n<p>The tested 15W-40 oil exhibited nonconformance in both the Viscosity Index and after-shear viscosity measurements. These deficiencies suggest<\/p>\n<p>that the oil may not behave as expected across different temperatures and could experience significant viscosity breakdown under stress. This behaviour<\/p>\n<p>could lead to reduced lubrication efficiency, increased engine wear, and potential engine damage under certain operating conditions.<\/p>\n<h4>Conclusion:<\/h4>\n<p>Based on these findings, the 15W-40 oil fails to meet the requirements to be classified as SAE 15W-40 due to its nonconformance with after-shear viscosity<\/p>\n<p>standards. Addressing these issues is essential to ensure that the oil meets both performance expectations and regulatory compliance.<\/p>\n<p>This technical assessment underscores the importance of adhering to specified parameters to maintain optimal engine performance, efficiency, and<\/p>\n<p>longevity. Ensuring that the oil performs consistently under various conditions is critical to preventing engine wear and ensuring the long-term reliability of the<\/p>\n<p>engine.<\/p>\n","protected":false},"author":8,"featured_media":9254,"comment_status":"open","ping_status":"closed","template":"","categories":[81],"tags":[82,64,66,83,62,63,88,87,85,86,80],"class_list":["post-9253","forum","type-forum","status-publish","has-post-thumbnail","hentry","categories-shpd","tags-15w40","tags-acea","tags-api","tags-ci-4","tags-engineoil","tags-lowsaps","tags-mb228-3","tags-shearstabilityindex","tags-tecnol","tags-vi","tags-volkswagen"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>TECNOL 15W-40 ACEA E7 VDS3,MB228.3 &#8212; Oil Test Club<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/oiltestclub.fanfaro.de\/?forum=tecnol-15w-40-acea-e7-vds3mb228-3\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TECNOL 15W-40 ACEA E7 VDS3,MB228.3 &#8212; Oil Test Club\" \/>\n<meta property=\"og:description\" content=\"Technical Conclusion: This technical conclusion highlights the non-conformance of the 15W-40 oil concerning its Viscosity Index and after-shear viscosity. Viscosity Index (VI): Definition: The Viscosity Index is a measure of how much a lubricant&#8217;s viscosity changes with temperature. 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