{"product_id":"comp-cams-engine-break-in-oil-additive-12-oz-zddp-moly-anti-wear-formula-for-new-rebuilt-engines","title":"Comp Cams Engine Break-In Oil Additive 12 oz — ZDDP \u0026 Moly Anti-Wear Formula for New\/Rebuilt Engines","description":"\u003cp\u003e\u003cstrong\u003eCOMP Cams 159 Engine Break-In Oil Additive is a ready-to-use, ZDDP-enriched 12 oz formula designed to protect and optimize new or rebuilt engines during initial run-in without needing extra supplements.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eModern engine oils often lack the high levels of anti-wear chemistry that engine builders and performance enthusiasts rely on for safe break-in and long-term valve train protection. COMP Cams created this mineral-based, multi-viscosity break-in oil with a balanced additive package—zinc \u0026amp; phosphorus (ZDDP), molybdenum, detergents and a quality base oil—to assist surface mating and reduce wear on critical areas through the most vulnerable operating hours. It’s formulated to work with gasoline, methanol and high-octane racing fuels and is ready to use straight from the bottle.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this oil additive help during engine break-in?\u003c\/h3\u003e\n\u003cp\u003eThis product improves surface mating of freshly machined components, helping rings seat and cam\/lifter faces wear-in predictably. The ZDDP and molybdenum create an anti-wear film under high contact pressures, while detergents maintain cleanliness during initial operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePromotes controlled wear on cam lobes, lifters and flat tappet surfaces.\u003c\/li\u003e\n  \u003cli\u003eHelps piston rings achieve proper sealing faster for better compression.\u003c\/li\u003e\n  \u003cli\u003eReduces risk of premature scoring on rod journals and valve guides.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this oil ready to use or does it need mixing with other additives?\u003c\/h3\u003e\n\u003cp\u003eThe COMP Cams break-in oil is fully formulated and requires no additional supplements. It’s a multi-viscosity mineral-based product intended to be used as supplied for break-in and initial running periods.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNo extra ZDDP or moly additions required.\u003c\/li\u003e\n  \u003cli\u003eCompatible with common fuels including gasoline, methanol and high-octane race blends.\u003c\/li\u003e\n  \u003cli\u003eWorks as the engine’s primary oil during the controlled break-in phase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich engine components get the most benefit from this formula?\u003c\/h3\u003e\n\u003cp\u003eThe additive targets high-friction and high-load surfaces where mating must occur precisely. Components like flat tappets, cam lobes, piston rings, rod journals and valve guides are the primary beneficiaries of the anti-wear package.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlat tappet and roller valve trains—improved protection during initial contact.\u003c\/li\u003e\n  \u003cli\u003eRotating assembly—reduced scoring on journals and bearings under break-in stresses.\u003c\/li\u003e\n  \u003cli\u003ePiston rings and cylinder walls—better seating and reduced blow-by during early hours.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I use the 12 oz bottle for best results?\u003c\/h3\u003e\n\u003cp\u003eUse the bottle per the engine builder’s instructions for break-in volume and procedure. One 12 oz bottle is often sufficient as an initial treatment for small-block and many performance engines when added according to recommended ratios or used as the primary break-in oil in appropriate crankcase capacities.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdd per your engine or machine break-in procedure—follow COMP Cams or builder guidelines.\u003c\/li\u003e\n  \u003cli\u003eMonitor oil condition and temperatures during the controlled run-in period.\u003c\/li\u003e\n  \u003cli\u003eChange to a regular high-quality oil after break-in or as recommended.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: COMP Cams 159 Engine Break-In Oil Additive is aimed at engine builders, performance hobbyists and racers who assemble, rebuild or upgrade engines and want a purpose-built break-in lubricant that contains the correct anti-wear chemistry. If you work with flat tappet cams, high-performance rotating assemblies or run on race fuels and need a ready-made ZDDP-enhanced oil to protect vital surfaces through the first running hours, this 12 oz formula is designed for that application.\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 COMP Cams 159 with modern synthetic oils?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This product is a mineral-based, fully formulated break-in oil designed to be used as supplied; consult your builder before blending with synthetic oils.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is COMP Cams 159 safe for flat tappet cams?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—its ZDDP and molybdenum content is formulated specifically to protect flat tappet and other high-contact valve train components.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Comp Cams","offers":[{"title":"Default Title","offer_id":48082937282718,"sku":"B000CIO86M","price":54.14,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/comp-cams-159-front-bottle.jpg?v=1785819486","url":"https:\/\/northtrailauto.ca\/products\/comp-cams-engine-break-in-oil-additive-12-oz-zddp-moly-anti-wear-formula-for-new-rebuilt-engines","provider":"North Trail Auto","version":"1.0","type":"link"}