Best Antifreezes & Coolants of 2026

"I was happy to find this genuine OEM product online since my local stores didn’t stock it. Shipping was quick, and returning extras was easy. My truck holds temperature perfectly—no complaints at all."

"I chose this coolant to top off my car because it’s what the manufacturer recommends. After using it, I’ve had zero issues with overheating, so I’m confident it’s doing its job."

"I use this coolant for our family’s Chrysler vehicles, and I appreciate that it’s rated for up to 10 years or 150,000 miles. Following a regular maintenance schedule with this product has helped us avoid any cooling system failures, even on high-mileage vehicles."

"I found the quality of the Zerex coolant to be just what I needed for my car. The orange color matched the description, and it was easy to handle and pour. I’m happy with how it performed."

"I purchased this for my wife’s Buick, and it’s working perfectly. The price was excellent, which made the overall purchase even better."

"What impressed me most was the speedy delivery. I was stranded on the highway, and thanks to AAA and Amazon, I had the coolant delivered to a motel, then got back on the road quickly. Amazon really saved the day for me."

"I’ve used this coolant in my Toyota, KIA, and Hyundai vehicles and it’s always worked perfectly. The three color options are all interchangeable and deliver reliable cooling performance as long as your car meets the specs."

"When I changed the coolant in my Acura MDX and Honda Accord, both cars continued to run smoothly and the fit was exactly as described on Amazon. I’m pleased with the result and confident in its vehicle compatibility."

"This has become my go-to for my Subarus because it keeps them running at the correct temperature and is easy to find at a good price. I also appreciate that it ships quickly and arrives leak-free every time."

"I use this coolant in my 2000 ML320 and love that it's affordable compared to brand-name options. For the same price elsewhere, you only get one quart, but this offers more and gets the job done well."

"I've tried this antifreeze concentrate in my 2007 Mercedes and even my GM vehicles, and it always delivers outstanding results. The engine stays noticeably cooler, and I appreciate the fast shipping and fair pricing despite tariffs."

"This is exactly what I needed for my BMW. It matches the right color, works as it should, and is available at a much better price than the OEM BMW fluid. Even though BMW cooling systems tend to leak because of their plastic parts, I'm happy with this product."

"After changing the radiator on my 2007 Acura RDX, I filled it with this coolant and immediately noticed improved performance and optimal engine temperature. Installation was smooth, and the product's consistency and color gave me confidence in its effectiveness. Since then, my vehicle runs cooler, even in hot weather, and I no longer worry about overheating. I appreciate that it’s designed specifically for Asian vehicles—it has really revitalized my cooling system."

"I've used this antifreeze for my daughter's Subaru because dealer prices are just too high. It has the right additives for her car, and so far, the engine has stayed cool with no overheating. Spot checks look good, so I’ll likely use it for my other Subarus as well."

"This premixed coolant has been great for our Asian sedan during winter. It’s convenient, easy to pour, and I don’t have to add more water. The engine runs smoothly and stays protected, making it a smart choice for our routine maintenance."

"I've been working on cars for years, and these strips are a huge time, work, and money saver. No more guesswork—now I know exactly when my coolant and brake fluid really need replacing. The results matched what I saw in my car's service records, and I appreciate having a quick, reliable tool for checking fluid health. I'll keep buying these as long as they're available."

"This product is super useful and fairly priced! It does exactly what it's supposed to do and prevents unnecessary fluid changes. The instructions could be clearer, but once I figured it out, it worked perfectly. I’m very satisfied with how much maintenance hassle it saves me."

"I found these strips very easy to use—just dip and read the color key. They give quick, accurate results for both coolant and brake fluid, and I like that each strip is individually sealed for freshness. It's a smart tool for any home mechanic."

"I used PEAK OET in my 2018 Toyota Camry and was impressed by the long-lasting protection and simple, pre-mixed formula. It kept my engine safe in tough conditions and was compatible with various Asian car brands. The process was quick and hassle-free. I do wish the bottle had a level indicator, but overall, the value and quality are excellent."

"For my 2025 Hyundai Santa Fe, I went with the Peak OET Extended Life Red/Pink Concentrate. It worked perfectly and I was able to make two gallons from one, which made it very economical. Highly recommend for anyone wanting both effectiveness and savings."

"I topped off the coolant in my new Hyundai Elantra and my mom’s Kona with this product. The color matched perfectly and it worked great in both cars during the summer. No issues at all, even with AC running all the time."

"I recently tried this antifreeze for a coolant flush and found it to be simple to mix, high in quality, and very affordable. The vivid orange hue made it easy to monitor fluid levels, and my car has continued to run at its usual temperature without any issues. It’s a reliable, standard antifreeze that meets expectations."

"PEAK OET Extended Life Orange 50/50 Prediluted Antifreeze/Coolant has truly impressed me! Its ready-to-use formula eliminated the hassle of mixing, and it’s made for North American vehicles, delivering outstanding performance during both extreme heat and cold. The extended protection—up to 150,000 miles or 5 years—gives me real peace of mind. I especially like how easy it is to spot leaks thanks to the orange color, and my engine’s cooling performance has noticeably improved. It’s also compatible with many vehicle brands, including GM, Ford, and Chrysler, so I’d definitely recommend it to other drivers."

"When I needed to top up my radiator after replacing the thermostat, this coolant was the perfect match for my Yukon. It’s Dex orange, exactly what my vehicle specifies, and there was enough in the jug to finish the job."

"I've been using this coolant for several months and am thoroughly impressed by its superior quality and reliable performance. My engine stays cool even during harsh weather, and the corrosion protection is top-notch. It's designed specifically for Toyota and Lexus, so I know I'm giving my vehicle the best. The easy-to-use container and vibrant color make maintenance a breeze. I haven't faced a single overheating issue since switching—highly recommended for anyone seeking dependable cooling!"

"This is a genuine Toyota product and exactly what my 2019 Tundra requires. While it's a bit pricier than some alternatives, the manufacturer's recommendation and proven reliability make it worth every penny."

"After trying this engine coolant, I can confidently say it exceeded all my expectations. The engine runs smoother and cooler, and I appreciate the enhanced efficiency and longevity it brings. For anyone serious about vehicle performance and long-term reliability, this is an excellent investment."

"I use this product every winter at my cabin to prevent freezing, and it works flawlessly in all my commodes. Very reliable for seasonal use."

"This was exactly what my Jeep needed and at a great price. I like that I didn’t have to worry about diluted product after a previous emergency where I added water."

"The fast shipping saved me when my car was low on antifreeze. I didn’t want to risk driving, and it arrived the next day—super convenient."