{"product_id":"peak-extended-life-antifreeze-coolant-concentrate-for-heavy-duty-engines-1-gal-egr-scr-safe","title":"PEAK Extended-Life Antifreeze\/Coolant Concentrate for Heavy-Duty Engines, 1 Gal — EGR\/SCR Safe","description":"\u003cp\u003e\u003cstrong\u003ePEAK FINAL CHARGE is a concentrated, extended-life antifreeze\/coolant designed for heavy-duty diesel, gasoline, and natural gas engine cooling systems.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis one-gallon concentrate from PEAK mixes with water to create a high-performance coolant that helps manage engine temperatures, protect metal components from corrosion, and extend service intervals in heavy-duty applications. Formulated for modern engines with exhaust gas recirculation (EGR) and selective catalytic reduction (SCR) systems, it provides reliable heat transfer while minimizing wear on water pump seals. The formula also contains Denatonium Benzoate (a bittering agent) to discourage accidental ingestion and has compatibility with other coolants if contamination remains low.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this concentrate help engines with EGR and SCR systems?\u003c\/h3\u003e\n\u003cp\u003ePEAK FINAL CHARGE is engineered for the thermal demands of engines fitted with emission control hardware. Its heat-transfer properties maintain stable operating temperatures under high loads, reducing the risk of overheating and thermal stress to critical components. The formulation avoids aggressive additives that can accelerate deposit formation in EGR and SCR pathways.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOptimized heat transfer for high-temperature engine operation\u003c\/li\u003e\n  \u003cli\u003eCompatibility with emission-system materials to reduce deposits\u003c\/li\u003e\n  \u003cli\u003eConcentrated form lets you mix to required freeze\/boil protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I mix this coolant with other brands or types?\u003c\/h3\u003e\n\u003cp\u003ePEAK FINAL CHARGE can be blended with other coolants, but doing so may affect performance. To preserve corrosion protection and formulation integrity, contamination should be kept below 25%. When topping off or switching, follow recommended dilution and monitor coolant condition regularly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMixing allowed if contamination remains under 25%\u003c\/li\u003e\n  \u003cli\u003eUse proper dilution to achieve intended freeze\/boil protection\u003c\/li\u003e\n  \u003cli\u003eInspect system for cross-contamination before blending\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat maintenance life and protection levels can I expect?\u003c\/h3\u003e\n\u003cp\u003eWhen mixed and maintained correctly, the antifreeze\/coolant mixture is designed to support extended service intervals and long-term protection. PEAK specifies that, under proper maintenance practices, a correctly prepared mixture can protect engines for up to one million miles of on-road use. Regular checks of concentration, pH, and contamination help ensure that service life is maximized.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFormulated for long service intervals when maintained\u003c\/li\u003e\n  \u003cli\u003eSupports corrosion resistance for multiple engine metals\u003c\/li\u003e\n  \u003cli\u003eCheck concentration and condition periodically to maintain performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this product affect water pump seals and components?\u003c\/h3\u003e\n\u003cp\u003eThe non-abrasive chemistry in PEAK FINAL CHARGE is designed to be gentle on seals and cooling system components. It can help prolong water pump seal life compared with more abrasive formulations, while still delivering the corrosion control and thermal stability required in heavy-duty engines.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNon-abrasive formula to reduce seal wear\u003c\/li\u003e\n  \u003cli\u003eCorrosion inhibitors protect radiators and engine passages\u003c\/li\u003e\n  \u003cli\u003eContains a bittering agent to discourage ingestion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: PEAK FINAL CHARGE concentrate is intended for fleet managers, heavy-equipment operators, and technicians who service heavy-duty diesel, gasoline, or natural gas engines. It’s suitable for shops that need flexible dilution options, long service intervals, and a coolant compatible with modern emission-related engine hardware. Not recommended for closed systems specifying a different coolant technology without consulting the engine manufacturer.\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: What dilution ratio should I use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Dilute according to engine manufacturer instructions; typical mixes use 50\/50 for balanced freeze\/boil protection and corrosion control.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this safe to mix with other coolants?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, but keep contamination below 25% to retain corrosion protection and consistent performance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"PEAK","offers":[{"title":"Default Title","offer_id":48087197778078,"sku":"B00U35SUJK","price":36.42,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/peak-final-charge-front-gallon.jpg?v=1785918651","url":"https:\/\/northtrailauto.ca\/products\/peak-extended-life-antifreeze-coolant-concentrate-for-heavy-duty-engines-1-gal-egr-scr-safe","provider":"North Trail Auto","version":"1.0","type":"link"}