PEAK OET Extended Life Red/Pink 50/50 Prediluted

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.

What makes this coolant suitable for Lexus, Scion, and Toyota vehicles?

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.

• Color and chemistry match OEM red/pink POAT recommendations
• Compatible with many extended life antifreezes
• Helps protect rubber and metal components designed for POAT

How do I use the 50/50 prediluted gallon in routine maintenance?

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.

• Ready to use—no additional distilled water required for topping off
• Ideal for quick top-ups or partial refills during maintenance
• Follow vehicle capacity for full system fills to avoid over- or under-fill

What protection and service life can I expect from this coolant?

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.

• Prevents rust and corrosion across cooling system components
• Backed by a 150,000-mile / 5-year protection guarantee when flushed and filled correctly
• Contains denatonium benzoate as a safety bittering agent

Will this coolant mix with other extended life formulas?

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.

• Compatibility with other extended life coolants is supported
• Prefer matching POAT chemistry when possible to maintain inhibitor performance
• Flush system if switching from a different coolant technology

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.