{"product_id":"sta-lube-engine-assembly-lube-10-oz-tube-moly-graphite-lithium-thickener-for-extreme-pressure-protection","title":"Sta-Lube Engine Assembly Lube 10 oz Tube — Moly-Graphite, Lithium Thickener for Extreme Pressure Protection","description":"\u003cstrong\u003eSta-Lube SL3331 Extreme Pressure Engine Assembly Lube is a moly-graphite fortified, lithium-based grease in a 10 oz tube designed to protect metal-to-metal surfaces during engine assembly and initial start-up.\u003c\/strong\u003e\n\n\u003cp\u003eWhen building or reassembling an engine, the first moments of operation are the most vulnerable. Sta-Lube SL3331 provides a tacky, high-load lubricant that stays where you put it, reducing wear, friction, and galling between critical components during assembly, start-up, and break-in. Its lithium thickener and moly-graphite additives create a protective film on bearings, journals, cam lobes, and other sliding or rotating parts so parts move smoothly from the first rotation.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this assembly lube protect components at start-up?\u003c\/h3\u003e\n\u003cp\u003eThe SL3331 formula adheres to metal surfaces and forms a boundary layer that resists metal-to-metal contact during the initial few revolutions when hydrodynamic oil pressure hasn’t fully built. Molybdenum disulfide and graphite in the grease provide solid lubrication under high pressure, reducing the risk of scuffing and galling. It’s intended as a temporary, high-pressure barrier until engine oil circulation takes over.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCreates a tenacious film that resists fling-off and stays on bearings and journals.\u003c\/li\u003e\n  \u003cli\u003eMoly-graphite particles provide load-carrying capacity under extreme pressure.\u003c\/li\u003e\n  \u003cli\u003eLithium thickener ensures consistent texture and pumpability during application.\u003c\/li\u003e\n  \u003cli\u003eIdeal for cam lobes, lifters, crank journals, piston skirts, and gears.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere should I apply Sta-Lube SL3331 during assembly?\u003c\/h3\u003e\n\u003cp\u003eApply a thin, even coat to surfaces that will experience sliding or rotational contact during initial start-up. Focus on bearing surfaces, cam lobes, lifters, main and rod journals, and any fresh-machined faces that require protection before oil pressure builds. Avoid over-application in areas where excess grease could migrate into oil passages.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRod and main bearings — light film on shells and journals.\u003c\/li\u003e\n  \u003cli\u003eCamshaft lobes and lifters — smear a small amount on lobes and follower faces.\u003c\/li\u003e\n  \u003cli\u003ePiston skirts and rings — coat skirt areas to reduce scuffing during break-in.\u003c\/li\u003e\n  \u003cli\u003eThreads and fasteners — use sparingly on studs to prevent galling during torqueing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat type of engines and jobs is this product suited for?\u003c\/h3\u003e\n\u003cp\u003eSta-Lube SL3331 works with gasoline and diesel engines across passenger cars, trucks, performance builds, and many industrial engines. It’s tailored for fresh builds, rebuilds, and any application where initial protection against friction and wear matters. The tube format makes it practical for shop use or mobile repairs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNew engine assemblies and complete rebuilds.\u003c\/li\u003e\n  \u003cli\u003ePerformance engines and high-compression builds needing added initial protection.\u003c\/li\u003e\n  \u003cli\u003eRoutine component installation—bearings, cams, pistons, and gears.\u003c\/li\u003e\n  \u003cli\u003eMechanic shops, home garages, and field repairs where a reliable assembly lube is required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does Sta-Lube compare to other assembly lubricants?\u003c\/h3\u003e\n\u003cp\u003eCompared with light oil or non-fortified greases, SL3331 offers a thicker, more tenacious film and contains solid lubricants that perform under extreme pressure. Its lithium base balances adherence and ease of application, while the moly-graphite package gives extra protection on high-load contact surfaces. Choose it when you need a stay-put grease rather than a runny oil for initial protection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThicker film than light oils—reduces wash-off at first rotation.\u003c\/li\u003e\n  \u003cli\u003eSolid additives (moly, graphite) add load capacity absent in plain oils.\u003c\/li\u003e\n  \u003cli\u003eTube packaging enables controlled, targeted application during assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Sta-Lube SL3331 is for professional mechanics, engine builders, motorsport teams, and DIY enthusiasts rebuilding or assembling internal combustion engines who want reliable, high-pressure protection during start-up and break-in. It’s a practical choice when you need a grease that clings to critical metal surfaces and provides extra load-bearing support until full lubrication is established by the engine’s oil system.\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 lube on both gasoline and diesel engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Sta-Lube SL3331 is suitable for gasoline and diesel engines for assembly and start-up protection.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this replace engine oil after assembly?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It provides temporary start-up protection until normal engine oil circulation fully lubricates parts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Sta-Lube","offers":[{"title":"Default Title","offer_id":67595359944889,"sku":"B000M8RYUE","price":53.55,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/sta-lube-sl3331-front-tube.jpg?v=1790587413","url":"https:\/\/redleafauto.ca\/products\/sta-lube-engine-assembly-lube-10-oz-tube-moly-graphite-lithium-thickener-for-extreme-pressure-protection","provider":"Redleaf Auto","version":"1.0","type":"link"}