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PEAK OET Extended Life Orange 50/50 Prediluted Antifreeze/Coolant for North American Vehicles, 1 Gal.

  • Based on 2,093 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jun 1
Order within 5 hours and 29 minutes
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Size: 50/50


Features

  • 1 GALLON ENGINE ANTIFREEZE/COOLANT: Fully compatible with other extended life antifreeze/coolants. This item contains a bittering agent called Denatonium Benzoate.
  • PROTECTS: Advanced formulation prevents rust & corrosion protecting all engine cooling system components
  • DESIGNED FOR NORTH AMERICAN VEHICLES: Recommended for use with Ford, Chrysler, and GM vehicles that require an orange organic acid technology formula
  • GUARANTEED: When installed as part of a complete flush and fill, PEAK guarantees this coolant will provide service life protection of up to 400,000 miles or 15 years.
  • 50/50 PREDILUTED FOR QUICK TOP OFFS: Already prediluted to make topping off your cooling system a breeze

Manufacturer: ‎PEAK


Brand: ‎PEAK


Item Weight: ‎9.09 pounds


Product Dimensions: ‎7.5 x 3.9 x 11.8 inches


Manufacturer Part Number: ‎NAOB53-01


Date First Available: November 30, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great coolant, works perfectly
Size: 50/50
This coolant works exactly as expected. It’s convenient that it comes pre-diluted 50/50, so it’s ready to use right out of the bottle. The quality is excellent and it helps keep the engine temperature stable. Great value for the price and a reliable brand. I would definitely buy it again.
Reviewed in the United States on January 22, 2026 by Christian Barrios

  • the oet life works awsome
Size: 50/50
It was very compatible with my jeep and it came on time worked great
Reviewed in the United States on April 5, 2026 by thomas

  • 🛠️ Reliable Protection for Your Engine – PEAK OET Extended Life Antifreeze is a Game-Changer! 🚗
Size: 50/50
I’m highly impressed with the PEAK OET Extended Life Orange 50/50 Prediluted Antifreeze/Coolant! 🌟 This coolant is designed for North American vehicles, and it delivers exceptional performance in keeping my engine running smoothly, even during the hottest summer days or the coldest winter mornings 🥶. The fact that it’s prediluted means no mixing required—just pour and go, which makes maintenance a breeze ⏳. The extended life formula ensures optimal protection for up to 150,000 miles or 5 years, providing peace of mind that my vehicle is well-protected from overheating and freezing conditions. 🔥❄️ The orange color makes it easy to spot if there’s ever a leak, and I’ve noticed an improvement in my vehicle’s overall cooling performance since switching to this antifreeze. Plus, it’s compatible with a wide range of vehicles, including GM, Ford, and Chrysler models, making it a versatile option for many drivers 🚙. If you want reliable, high-quality antifreeze that offers long-lasting protection for your engine, I highly recommend PEAK OET Extended Life Antifreeze. I’d be excited to test more automotive products from this brand in the future! 🚗💯 ... show more
Reviewed in the United States on November 5, 2024 by David Houck

  • Good price
Size: 50/50
Works well.
Reviewed in the United States on April 7, 2026 by B Ridenour

  • Good coolant
Size: 50/50
It's orange and cools the vehicle. If you need orange than this is for you. Compatible with my truck and really easy to pour.
Reviewed in the United States on April 3, 2026 by Jeb Essmann

  • Good Antifreeze - Does the Job
Size: 50/50
Used this antifreeze for my last coolant flush and it works well. Easy to mix and seems like good quality. The orange color makes it easy to see the level in the reservoir. Good value for the amount you get and my car has been running at normal temperature with no issues. Standard antifreeze that does what it's supposed to do. ... show more
Reviewed in the United States on June 29, 2025 by Ryan Elmasian

  • Great product
Size: 50/50
Put in overflow tank to line
Reviewed in the United States on April 6, 2026 by Dagwood Baker

  • Anticongelante
Size: 50/50
Buen anticongelante, práctico y fácil de usar. Al venir premezclado 50/50 no hay que hacer nada más que agregarlo al vehículo. Funciona bien manteniendo la temperatura del motor estable y se nota de buena calidad. El envase es resistente y fácil de manejar. En general, cumple lo que promete y tiene buena relación calidad-precio. Lo recomiendo. ... show more
Reviewed in the United States on April 14, 2026 by Reybert marmol

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