{"product_id":"amsoil-signature-series-5w-30-100-synthetic-motor-oil","title":"AMSOIL Signature Series 5W-30 100% Synthetic Motor Oil","description":"\u003cp\u003e\u003cstrong\u003eHIGHLIGHTS\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eProtects\u003c\/strong\u003e – Ultimate long-life anti-wear protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eCleans\u003c\/strong\u003e – Fights sludge and carbon buildup\u003csup style=\"box-sizing: border-box; position: relative; vertical-align: baseline; top: -0.5em; line-height: 1.2em !important; font-size: 0.75em;\"\u003e1\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003eAdapts\u003c\/strong\u003e – Responds to changing conditions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong style=\"box-sizing: border-box; font-weight: bolder;\"\u003ePerforms\u003c\/strong\u003e – Proven beyond the standard\u003csup style=\"box-sizing: border-box; position: relative; vertical-align: baseline; top: -0.5em; line-height: 1.2em !important; font-size: 0.75em;\"\u003e2\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePRODUCT OVERVIEW\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCustom-Built to Outperform\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAMSOIL Signature Series 100% Synthetic Motor Oil is formulated for drivers who demand the absolute best engine protection. Built with advanced synthetic base oils and a precision-engineered additive system, it is designed to control wear, resist volatility and maintain viscosity under extreme heat, pressure and cold-start conditions. The result is uncompromising film strength, cleaner components and protection that pushes beyond industry standards into a class of its own.\u003cbr\u003e\u003cbr\u003eModern engines place unprecedented stress on motor oil through turbocharging, direct injection, higher temperatures and extended service intervals. Signature Series is engineered to meet those challenges head on, delivering more protection, performance and confidence mile after mile, even during extreme use.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e2X BETTER Protection Against Volatility\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e AMSOIL Signature Series delivers 2X better protection against volatility,3 helping reduce oil consumption, minimize top-offs and keep engines cleaner over time.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eGuards Against LSPI\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e Low-speed pre-ignition (LSPI) remains a serious concern in today’s turbocharged, direct-injection engines, where uncontrolled combustion events can damage pistons and other critical components, especially as motor oil ages. AMSOIL Signature Series 100% Synthetic Motor Oil is engineered to help prevent LSPI by maintaining a strong, stable formulation that continues to deliver outstanding performance throughout the drain interval. Even after 25,000 miles of use, Signature Series delivers 4X more piston protection against LSPI4 than the industry standard requires.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePreserves Horsepower and Torque\u003c\/strong\u003e \u003c\/p\u003e\u003cp\u003eAMSOIL Signature Series 100% Synthetic Motor Oil is built to help engines run stronger, longer5 – helping to protect engines from performance loss throughout their life.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eProven Cleaning Power\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e In Sequence IIIH testing, AMSOIL Signature Series delivers 72% more protection against piston deposits than required by industry standards,6 helping ensure cleaner pistons and consistent performance over time.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003eEven after doubling the length of the Sequence IIIH test, Signature Series provided 31% better protection than required,7 demonstrating its ability to maintain cleanliness far beyond industry standards. \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNo Sludge, Just Protection\u003c\/strong\u003e \u003c\/p\u003e\u003cp\u003eDuring a 125K-mile accumulation study on a 2025 Ford F-150 Raptor, the engine experienced 0% oil screen plugging.8\u003c\/p\u003e","brand":"Amsoil","offers":[{"title":"1 Quart Bottle","offer_id":54473667379483,"sku":"ASLQT","price":15.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0911\/4360\/2459\/files\/product-media-504793.jpg?v=1793493974","url":"https:\/\/shagbarklumber.com\/products\/amsoil-signature-series-5w-30-100-synthetic-motor-oil","provider":"Shagbark Lumber and Farm Supplies","version":"1.0","type":"link"}