




PEAK Fleet Charge SCA Precharged Coolant/Antifreeze is a concentrated, supplemental coolant additive designed for heavy-duty diesel, gasoline and natural gas engines to provide long-lasting freeze and boil-over protection when mixed to service strength.
Engine cooling systems in commercial vehicles face aggressive conditions—high loads, extended idling and hard duty cycles. PEAK Fleet Charge SCA (Supplemental Coolant Additive) precharged concentrate is formulated to restore and maintain corrosion inhibitors and pH balance in heavy-duty systems. When diluted to the recommended ratio it replenishes depleted protection and helps prolong coolant life and engine component durability without introducing incompatible chemistries.
Mix the concentrate with water to reach the manufacturer-recommended coolant concentration, or use with prediluted 50/50 solutions where specified. Always follow your engine maker's instructions for SCA application frequency and volume to ensure proper inhibitor levels and system performance.
PEAK Fleet Charge restores essential supplemental inhibitors that guard cooling system metals and help maintain freeze/boil protection when used correctly. It targets corrosion and deposit control so cooling passages and heat-transfer surfaces remain efficient under heavy operational stress.
PEAK Fleet Charge is designed as a supplemental additive compatible with many heavy-duty coolant formulations, but you should confirm compatibility with the coolant base in your equipment before adding. Avoid mixing incompatible chemistries—consult product labels and engine maker guidance for safe blending.
Application frequency depends on engine type, operating conditions and coolant testing results. Regularly scheduled maintenance with periodic coolant analysis will indicate when additional SCA is needed to maintain protective inhibitor levels.
Who is this for: PEAK Fleet Charge SCA Precharged Coolant/Antifreeze concentrate is intended for fleet managers, maintenance technicians and owner-operators responsible for heavy-duty diesel, gasoline and natural gas engine cooling systems. It suits workshops that perform routine coolant maintenance and require a concentrated, precharged supplemental product to restore inhibitor balance, reduce corrosion risk and help preserve coolant performance across demanding service intervals.
Q: Can I add PEAK Fleet Charge directly to radiator without diluting?
A: No. PEAK Fleet Charge is a concentrate; mix to the correct ratio or follow engine maker guidance before adding.
Q: Is this product suitable for both diesel and gasoline heavy-duty engines?
A: Yes. It’s formulated for heavy-duty diesel, gasoline and natural gas engine cooling systems when used as directed.
Free shipping across Canada on every order, with no minimum. Orders are processed within 1 business day and standard delivery across Canada usually takes 2 to 5 business days after processing, with tracking by email. See the shipping policy.
Free 30-day returns. You have 30 days from delivery to start a return. Return shipping is free: email us your order number and we send a prepaid label. See the return & refund policy.
Not sure it fits? Email northtrailauto@gmail.com with your year, make, model and engine and we reply within 1 business day.








