{"id":77519,"date":"2026-05-19T14:25:10","date_gmt":"2026-05-19T11:25:10","guid":{"rendered":"https:\/\/e-lubricants.gr\/shop\/uncategorized\/amsoil-signature-series-5w-30-100-synthetic-motor-oil-3-78lt-asl1g\/"},"modified":"2026-11-12T13:31:07","modified_gmt":"2026-11-12T11:31:07","slug":"amsoil-signature-series-5w-30-100-synthetic-motor-oil-3-78lt-asl1g","status":"publish","type":"product","link":"https:\/\/e-lubricants.gr\/en\/shop\/lubricants\/vehicle-lubricants\/vehicle-lubricants-5w-30\/amsoil-signature-series-5w-30-100-synthetic-motor-oil-3-78lt-asl1g\/","title":{"rendered":"AMSOIL SIGNATURE SERIES 5W-30 100% SYNTHETIC MOTOR OIL 3.78LT ASL1G"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil \u2013 Maximum Protection & Extended Drain Intervals<\/h4>\n

AMSOIL Signature Series 5W-30<\/strong> is an advanced 100% synthetic high-performance engine oil<\/strong>, designed for maximum wear protection, excellent engine cleanliness and extended drain intervals.<\/p>\n

It delivers outstanding performance in modern petrol engines<\/strong>, including engines with turbo<\/strong>, and is ideal for demanding driving, heavy loads and extended use.<\/p>\n

Under normal operating conditions, it provides engine protection for up to 40,000 km or 1 year<\/strong>.<\/p>\n

\n
Key Advantages<\/h5>\n
    \n
  • \"\u2714\" Up to 75% more protection against wear<\/strong> and loss of power<\/li>\n
  • \"\u2714\" Up to 72% better turbo protection<\/strong> compared with GM dexos1 Gen 2 requirements<\/li>\n
  • \"\u2714\" Up to 50% greater cleaning ability<\/strong> compared with conventional synthetic oils<\/li>\n
  • \"\u2714\" Up to 28% better acid neutralisation<\/strong> compared with leading competitor products<\/li>\n
  • \"\u2714\" Engine protection for up to 40.000 km<\/strong><\/li>\n<\/ul>\n
    \n
    Wear Protection<\/h5>\n

    AMSOIL Signature Series creates a strong lubricating film that keeps metal surfaces apart, drastically reducing wear on critical components such as camshafts, pistons and springs.<\/p>\n

    \n\n\n\n\n
    <\/th>\nIndustry Standard<\/th>\nAMSOIL Signature Series 0W-20 Synthetic Motor Oil<\/th>\n<\/tr>\n
    Average Cam Wear<\/th>\n90<\/td>\n20.28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    A<\/sup> Based on independent testing of AMSOIL Signature Series 0W-20 in ASTM D6891, as required by the API SN specification.<\/em><\/p>\n

    \n
    Better Start-up Protection<\/h5>\n

    The advanced formulation offers excellent fluidity at low temperatures, ensuring faster oil circulation at start-up and reduced wear in the first critical seconds of operation.<\/p>\n

    \n\n\n\n\n
    <\/th>\nAMSOIL Signature Series (5W-30)<\/th>\nRoyal Purple High Performance (5W-30)<\/th>\nLucas (5W-30)<\/th>\nDriven LS30 (5W-30)<\/th>\nRed Line High Performance (5W-30)<\/th>\nRoyal Purple HPS (5W-30)<\/th>\n<\/tr>\n
    Cranking Viscosity (mPa\u00b7s)<\/th>\n3800<\/td>\n4500<\/td>\n5000<\/td>\n5750<\/td>\n6100<\/td>\n6100<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    * Based on independent third-party testing in the ASTM D5293 Cold Crank Simulator, as required by SAE J300.<\/em><\/p>\n

    ** Trademarks and images are the property of their respective owners and do not imply affiliation or endorsement.<\/em><\/p>\n

    \n
    LSPI Protection<\/h5>\n

    AMSOIL Signature Series provides 100% protection against LSPI (Low-Speed Pre-Ignition)<\/strong>, a phenomenon that can cause serious damage to modern small-displacement turbo engines.<\/p>\n

    B<\/sup> Based on zero LSPI events in five consecutive tests of AMSOIL Signature Series, XL and OE 5W-30 Motor Oil in the LSPI engine test, as required by the GM dexos1 Gen 2 specification.<\/em><\/p>\n

    \n
    Turbo Protection<\/h5>\n

    Provides up to 72% better turbocharger protection<\/strong>, reducing deposits and thermal stress under demanding operating conditions.<\/p>\n

    C<\/sup> Based on independent testing of AMSOIL Signature Series 5W-30 in the GM turbo coking test.<\/em><\/p>\n

    \n
    Viscosity Control & Thermal Stability<\/h5>\n

    Effectively resists viscosity increase under extreme operating conditions, maintaining stable performance and protection throughout its service life.<\/p>\n

    \n\n\n\n\n
    <\/th>\nIndustry Standard<\/th>\nAMSOIL 1X<\/th>\nAMSOIL 2X<\/th>\n<\/tr>\n
    Viscosity Increase %<\/th>\n100%<\/td>\n0.1%<\/td>\n49.6%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

    GG<\/sup> Based on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), as required by the ILSAC GF-6 and API SP specifications.<\/em><\/p>\n

    \n
    Engine Cleanliness<\/h5>\n

    The enhanced formulation with detergent additives helps keep the engine cleaner and performing better for longer.<\/p>\n

      \n
    • \"\u2714\" Up to 50% greater cleaning ability<\/strong><\/li>\n
    • \"\u2714\" Up to 90% better protection against sludge<\/strong><\/li>\n
    • \"\u2714\" Pistons up to 40% cleaner<\/strong> compared with industry standards<\/li>\n<\/ul>\n

      Even after extended use, AMSOIL Signature Series maintains excellent piston cleanliness and low deposit formation.<\/p>\n

      FF<\/sup> Based on independent testing of AMSOIL Signature Series 5W-30 in the Sequence IIIH Engine Test (ASTM D8111), as required by the ILSAC GF-6 and API SP specifications.<\/em><\/p>\n

      DD<\/sup> Based on independent testing of AMSOIL Signature Series 5W-30 in the ASTM D6593 engine test for oil filter plugging, as required by the API SN specification.<\/em><\/p>\n

      \n
      Long-Distance Performance<\/h5>\n

      In independent tests of up to 160,000 km, AMSOIL Signature Series demonstrated superior engine protection and kept components in excellent condition.<\/p>\n

      * Tests were carried out by an independent laboratory, using AMSOIL Signature Series 5W-30 and a leading synthetic-blend 5W-30 engine oil, in Ford F-150 trucks with 3.5L twin-turbo engines.<\/em><\/p>\n

      \n
      Ideal for:<\/h5>\n
        \n
      • \"\u2714\" modern petrol engines<\/li>\n
      • \"\u2714\" turbo engines<\/li>\n
      • \"\u2714\" demanding driving<\/li>\n
      • \"\u2714\" extended oil change intervals<\/li>\n<\/ul>\n
        \n
        Test Notes<\/h5>\n

        The results are based on independent laboratory tests (ASTM, GM, Sequence IIIH etc.) and comparisons with industry standards and competitor products.<\/em><\/p>\n","protected":false},"featured_media":72552,"template":"","meta":[],"product_brand":[],"product_cat":[338,342,366],"product_tag":[],"class_list":["post-77519","product","type-product","status-publish","has-post-thumbnail","product_cat-lubricants","product_cat-vehicle-lubricants","product_cat-vehicle-lubricants-5w-30","first","instock","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/product\/77519","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/product\/77519\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/media\/72552"}],"wp:attachment":[{"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/media?parent=77519"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/product_brand?post=77519"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/product_cat?post=77519"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/e-lubricants.gr\/en\/wp-json\/wp\/v2\/product_tag?post=77519"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}