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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 Tuesday, Oct 7
Order within 11 hours and 20 minutes
Available payment plans shown during checkout

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: ‎9.03 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: Tuesday, Oct 7

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
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  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • 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

  • Peak North American vehicles
Size: 50/50
Performs excellently and price was cheaper than auto part stores
Reviewed in the United States on July 28, 2025 by blewnc

  • Quality company. 😎
Size: 50/50
I have trusted this beamed for decades. It hasn’t let me down yet! 😎
Reviewed in the United States on June 4, 2025 by Nathan Thorne

  • 🛠️ 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

  • Antifreeze.
Size: 50/50
Works
Reviewed in the United States on August 5, 2025 by Amazon Customer

  • Orange color
Size: 50/50
It works well on my 2004 Yukon. So far, it keeps my truck cool with no issues. 4 star for delivering a little late
Reviewed in the United States on June 13, 2025 by Javier

  • Exact match in color
Size: 50/50
I needed to top off my antifreeze. Moved to San Francisco Ca about 6 years ago. Haven’t serviced my coolant since I’ve arrived. Don’t drive much but still need to check it. Put on about 2,000 miles in 6 years. 2003 LT silverado has been super reliable since I bought it new in Sept 2002. Just over 120,000 miles now. Engine light came on steady and I thought I had a new head gasket blown. Put in half gallon of 50/50 and light went out. Level is back up to where it is supposed to be. Next month I’ll take it in for a 120,000 mile service specifically for the cooling system, just to make sure. ... show more
Reviewed in the United States on July 6, 2024 by R. SAFRENO

  • Good product and fair price.
Size: Concentrate
Good product and fair price.
Reviewed in the United States on April 15, 2025 by Irol22

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