{"product_id":"royal-purple-duralec-ultra-diesel-15w40-ck-4-motor-oil-1-gallon","title":"Royal Purple Duralec Ultra Diesel 15W40 CK-4 Motor Oil - 1 Gallon","description":"Duralec Ultra combines premium base oils with Royal Purple's proprietary additive technology, Synerlec, to create a high-performance motor oil that optimizes engine performance and provides superior protection in rigorous on\/off highway applications. Synerlec provides unsurpassed film strength and lubricity – up to 4X more than top competitors. In addition, advanced synthetic solvency reduces engine deposits and keeps engines clean. The net result is a better performing engine, with reduced downtime and lower cost of ownership. Royal Purple recommends for use in a variety of heavy-duty applications including commuting, over-the-road trucking, agriculture, construction and mining.\n\u003cul\u003e\n  \u003cli\u003eExtraordinary performance in older generation, high-output diesel engines\u003c\/li\u003e\n  \u003cli\u003eMaximum wear protection – up to 33% better than CK-4 requirements\u003c\/li\u003e\n  \u003cli\u003eExtended oil life – up to 40% better than CK-4 requirements\u003c\/li\u003e\n  \u003cli\u003eImproved cold flow operation and start-up protection\u003c\/li\u003e\n  \u003cli\u003eReduced oil consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRoyal Purple Duralec Ultra Diesel 15W-40 CK-4 Motor Oil is formulated with premium base oils and Royal Purple’s proprietary Synerlec additive technology for dependable performance in demanding on- and off-highway applications. Part Number RLP80561 is designed to help optimize engine performance while providing advanced protection for heavy-duty diesel engines used in commuting, over-the-road trucking, agriculture, construction, and mining.\u003cbr\u003eSynerlec technology delivers exceptional film strength and lubricity, helping reduce friction and protect critical engine components under severe operating conditions. Advanced synthetic solvency helps control deposits and maintain engine cleanliness, supporting consistent performance and potentially reducing downtime and overall ownership costs. The 15W-40 viscosity provides improved cold-flow performance and enhanced protection during engine startup across a range of operating environments.\u003cbr\u003eDuralec Ultra is especially suited for older-generation, high-output diesel engines and meets the performance demands associated with CK-4 applications. Its heavy-duty formulation is engineered to help extend oil service life, reduce oil consumption, and provide reliable wear protection during extended operation. This motor oil is supplied in a convenient 1-gallon container and is an appropriate choice for diesel-powered vehicles and equipment requiring a 15W-40 CK-4 lubricant.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHeavy-duty diesel formulation: Combines premium base oils with Royal Purple Synerlec additive technology for demanding on- and off-highway applications.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEnhanced wear protection: Provides up to 33% better wear protection than CK-4 requirements.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eExtended oil life: Delivers oil-life performance up to 40% better than CK-4 requirements.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHigh film strength: Helps protect engine components with exceptional lubricity under severe operating conditions.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngine cleanliness: Advanced synthetic solvency helps reduce deposits and maintain a cleaner engine.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCold-start protection: Supports improved cold-flow operation and startup protection.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReduced oil consumption: Formulated to help minimize oil consumption during extended service.\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eVersatile application: Recommended for commuting, over-the-road trucking, agriculture, construction, mining, and other heavy-duty diesel uses.\u003c\/li\u003e\u003c\/ul\u003e","brand":"Royal Purple","offers":[{"title":"Default Title","offer_id":67603459178812,"sku":"rlp80561","price":152.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/ca2cd78c5af2733efd18d16fa040e7dd.jpg?v=1790750920","url":"https:\/\/necycleshop.com\/products\/royal-purple-duralec-ultra-diesel-15w40-ck-4-motor-oil-1-gallon","provider":"NE Cycle Shop","version":"1.0","type":"link"}