




This 1-gallon bottle comes pre-mixed 50/50 so you can top off or refill a cooling system without additional water. Formulated as a Phosphate-Enhanced Organic Acid Technology (POAT) coolant in the distinctive red/pink color required by many Asian automakers, it’s designed to match OEM fluid specifications and work with other extended life coolants. The product also includes a bittering agent (denatonium benzoate) to discourage accidental ingestion during handling.
PEAK OET is formulated to meet the phosphate-enhanced chemistry those manufacturers specify. Using the correct red/pink POAT fluid helps maintain gasket and hose compatibility and avoids chemical mismatch with systems designed for that formula.
Because it’s already mixed 50/50 with water, you can pour directly into the coolant reservoir or radiator when topping off. For a complete flush and refill, follow vehicle manufacturer steps and use the full gallon amount as needed based on system capacity.
The advanced corrosion inhibitors and organic acid technology reduce rust and scale formation inside the cooling circuit. When installed as part of a complete flush and fill, PEAK guarantees service life protection up to 150,000 miles or 5 years, which helps extend scheduled coolant change intervals when the correct procedure is followed.
PEAK OET is fully compatible with other extended life antifreeze/coolants, but mixing different chemistries can shorten inhibitor life. For best longevity, match the coolant type to the system’s original specification and perform a proper flush when changing chemistry types.
Who is this product for? PEAK OET Extended Life Red/Pink 50/50 Prediluted Antifreeze/Coolant is intended for owners and technicians of Asian vehicles—especially Lexus, Scion, and Toyota—requiring red/pink POAT coolants. It suits DIYers who want a ready-to-use top-off solution and service shops performing flush-and-fill maintenance on compatible systems. Always follow your vehicle manufacturer’s coolant recommendations and disposal guidelines.
Q: Is this coolant ready to use or do I need to mix it?
A: It is prediluted 50/50 and ready to use—no additional water needed for topping off.
Q: Can I use this coolant in non-Asian vehicles?
A: It’s compatible with other extended life coolants, but match chemistry to your vehicle’s OEM recommendation.
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.






