{"product_id":"sta-lube-engine-assembly-lube-sl3331-10-wt-oz-tube-moly-graphite-lithium-formula","title":"Sta-Lube Engine Assembly Lube SL3331 — 10 wt oz Tube, Moly-Graphite Lithium Formula","description":"\u003cp\u003e\u003cstrong\u003eSta-Lube Extreme Pressure Engine Assembly Lube SL3331 is a moly-graphite fortified, lithium-based grease designed to protect metal-to-metal surfaces during engine assembly, initial start-up, and break-in.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhen building or rebuilding an engine, the first moments of operation are the most vulnerable for bearings, cam lobes, piston skirts, and other sliding contacts. This 10 wt oz tube of Sta-Lube SL3331 lays down a tacky film that resists fling-off and keeps lubrication where engines need it most before normal oil pressure builds. The formula combines a lithium soap base with molybdenum disulfide and graphite to reduce friction, prevent galling, and limit wear during assembly and the critical break-in interval.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this assembly lube protect engine components during start-up?\u003c\/h3\u003e\n\u003cp\u003eThe product sticks to metal surfaces and forms a protective boundary that stays in place until the engine’s oil system reaches operating pressure. Its solid lubricants (moly and graphite) provide low-friction contact under high loads and sliding motion, reducing risk of scoring and early wear.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdheres to bearings, cam lobes, lifters, and piston skirts to prevent dry starts.\u003c\/li\u003e\n  \u003cli\u003eMoly and graphite reduce friction at high contact pressures.\u003c\/li\u003e\n  \u003cli\u003eLithium-thickened base resists melting and fling-off at elevated temperatures.\u003c\/li\u003e\n  \u003cli\u003eLeaves a stable film until engine oil takes over lubrication duties.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere and when should I apply Sta-Lube SL3331 in an engine build?\u003c\/h3\u003e\n\u003cp\u003eApply the assembly lube to any metal-to-metal sliding or rolling surfaces prior to initial engine start. Typical application points include main and rod bearings, camshaft journals and lobes, lifters, rocker arms, and piston skirts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCoat bearing surfaces lightly but thoroughly before installation.\u003c\/li\u003e\n  \u003cli\u003eSpread a thin layer on cam lobes and journals to protect lobes during first rotations.\u003c\/li\u003e\n  \u003cli\u003eApply to wrist pins, lifter faces, and pushrod ends where contact occurs.\u003c\/li\u003e\n  \u003cli\u003eUse on exposed fastener threads or mating surfaces when transient lubrication is needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the formulation highlights and performance characteristics?\u003c\/h3\u003e\n\u003cp\u003eSL3331 uses a lithium soap grease base blended with solid lubricants to combine tenacious adhesion with extreme-pressure performance. The blend resists washout and retains lubricity under heavy loads and the high sliding velocities typical in engines during break-in.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLithium-thickened grease gives tackiness and thermal stability.\u003c\/li\u003e\n  \u003cli\u003eMoly-graphite pack reduces metal-to-metal friction and micro-welding.\u003c\/li\u003e\n  \u003cli\u003eDesigned specifically for assembly and transient protection, not as a running engine oil.\u003c\/li\u003e\n  \u003cli\u003ePackaged in a convenient 10 wt oz tube for controlled application.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Engine builders, professional technicians, and home mechanics rebuilding or assembling gasoline and diesel engines will find Sta-Lube SL3331 useful to protect critical surfaces during the vulnerable start-up and break-in period. It’s intended for use on bearings, camshafts, pistons, and other rotating or sliding parts where a temporary, high-performance protective film is needed until normal oil circulation begins. Avoid using it as a substitute for engine oil; follow manufacturer recommendations for torque, tolerances, and initial break-in procedures.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this assembly lube in gasoline and diesel engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Sta-Lube SL3331 is formulated for use on metal-to-metal contacts in both gasoline and diesel engine assemblies during start-up and break-in.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Should I replace engine oil with this product?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This lube provides temporary protection during assembly and initial start-up; normal engine oil must be used for ongoing lubrication.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sta-Lube","offers":[{"title":"Default Title","offer_id":55161655689559,"sku":"B000M8RYUE","price":30.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/sta-lube-sl3331-front-tube.jpg?v=1790330927","url":"https:\/\/britishgarage.co.uk\/products\/sta-lube-engine-assembly-lube-sl3331-10-wt-oz-tube-moly-graphite-lithium-formula","provider":"British Garage","version":"1.0","type":"link"}