PEAK OET Antifreeze/Coolant Blue 50/50 3.79 L — Extended Life Protection for Asian Vehicles

PEAK OET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant is a ready-to-use, phosphate-enhanced POAT formula engineered for Asian makes to protect cooling systems against corrosion and rust up to 150,000 miles or 5 years when installed after a full flush and fill.

This one-gallon bottle arrives pre-mixed to a 50/50 concentration so you can top off or refill your vehicle’s cooling system immediately without measuring or adding water. The blue phosphate-enhanced Organic Acid Technology (POAT) formula is matched to the coolant specifications commonly required by many Asian automakers, providing long-term corrosion protection for aluminum and mixed-metal engine components. A bittering agent (Denatonium Benzoate) has been included to discourage accidental ingestion.

Which vehicles is this coolant designed for?

This PEAK OET formula is optimized for Asian-brand cars and light trucks whose factory recommendations call for a blue, phosphate-enhanced POAT coolant. It suits models from Acura, Honda, Infiniti, Mitsubishi, Nissan, Subaru, and Suzuki, and performs in systems using aluminum heads, radiators, and mixed-metal components.

• Meets common Asian OEM requirements for blue POAT coolant
• Works with aluminum and mixed-metal cooling systems
• Compatible across many Acura, Honda, Infiniti, Mitsubishi, Nissan, Subaru, Suzuki models

How does the 50/50 prediluted formula simplify maintenance?

With the coolant already diluted to the correct 50/50 ratio, there’s no need to mix concentrate and distilled water, reducing the chance of incorrect mixtures. This makes quick top-offs and routine maintenance faster, especially when roadside or in a home garage.

• Ready-to-use — eliminates measuring errors
• Saves time for quick top-offs or emergency refills
• Consistent freeze/boil protection when used as directed

What protection and performance can I expect?

The extended life POAT chemistry helps control corrosion and scale buildup across the cooling loop so water pumps, radiators, heater cores, and engine passages remain protected. When installed after a complete flush and fill, PEAK guarantees service life protection for up to 150,000 miles or 5 years, helping reduce the need for frequent coolant changes.

• Advanced corrosion inhibitors protect multiple metals
• Helps reduce rust, scale, and deposits in the cooling system
• Manufacturer-backed protection when used as a full flush-and-fill replacement

Is this product safe to handle and store?

The product includes Denatonium Benzoate, a bittering agent added to discourage ingestion, and should be stored and used according to product labeling. As with all automotive fluids, avoid skin contact and eye exposure, keep away from children and pets, and store in a cool, dry place away from direct sunlight.

• Contains bittering agent to reduce accidental ingestion risks
• Follow label instructions for safe handling and disposal
• Keep out of reach of children and pets

Who is this for: PEAK OET Extended Life Blue 50/50 Prediluted Antifreeze/Coolant is ideal for owners and technicians of Asian-brand cars and light trucks who want a convenient, OEM-compatible coolant that minimizes mixing errors and offers long-term corrosion protection. Choose this one-gallon ready-to-use bottle when you need a straightforward top-off solution or when performing a full flush-and-fill to restore extended-life protection to the cooling system.