15-Pack Double-Ended Brake Fluid & Coolant Test Strips | Ideal for Service Centers, Tests DOT 3/4/5.1 Brake Fluids and All Coolant Types/Colors

Really like these strips! They did a good job in showing the efficacy of the coolant and brake fluid in both my vehicles. Excellent way to test the newer, long-life coolants - from what I've read, the two tests are what is needed for those coolants. Found out things were in good shape, but the brake fluid was getting a little "long in the tooth" on one (which I wouldn't have guessed). Easy to read the results with the color key on the package. And each strip comes in it's own sealed foil packet, which should help with shelf life.

I'm retired and only drive about 3000 miles per year. So, the manufacturer's recommended maintenance intervals are not useful for me. This test kit allows me to test both the brake fluid and coolant to see when they actually need to be replaced. FYI, the factory installed coolant and brake fluid both checked out OK at 26,000 miles in my 2018 Sentra. So, I saved $250 on service I didn't need to do. The instructions are clear and the tests are VERY EASY to do.

USPS lost the package and never put it in my PO Box I went to costumer service on the app and they sent me a replacement free of charge Works as expected and I believe every car should come with theses to prevent eroding rubber in the brake lines or the coolant.

I am very pleased with the Phoenix Systems 8006-B Double-Ended Brake Fluid + Coolant Test Strips (15 foil-wrapped strips). Shipping was prompt, and the test strips arrived well-packaged and protected. Each strip was individually foil-sealed, helping ensure they remained clean and ready for use without exposure to moisture or contaminants. In terms of product quality, these test strips feel straightforward and reliable for basic fluid analysis. The dual-ended design—one end for brake fluid and the other for coolant—makes it convenient to check the condition of both systems with a single tool. The color reference scales on the packaging are clear and easy to interpret, making comparisons quick and intuitive, even for someone without technical experience. Using the strips was simple: just dip the appropriate end in the fluid and compare the resulting color change to the guide. In my case, the coolant strip provided a clear pH indication, and the brake fluid end helped me see whether the moisture content was within an acceptable range. While these strips are not a substitute for professional laboratory testing, they offer a practical, on-the-spot snapshot of fluid condition that can help inform routine maintenance decisions. From a value perspective, this 15-strip pack offers solid everyday utility at a reasonable price. Having multiple individually wrapped strips means you can perform several checks over time or on different vehicles without worry about strip degradation. Overall, this is a dependable, easy-to-use test strip set that provides helpful information for basic brake fluid and coolant condition checks. I would recommend it as a quick, cost-effective tool for raising awareness of routine maintenance.

This is a very simple testing method that prevents unnecessary fluid replacement. When buying a used vehicle, or when repair shops use non OEM fluids, you have no way of knowing the health of the fluids. This kit answers that question within a few minutes.

These are simple to use and appear to be accurate. Works within seconds and are easy to interpret. I feel like these are easier to use than the old school antifreeze testers and eliminate the possibility of a false reading. These are a good tool to have for the average home mechanic.

Only recently heard about these test strips for coolant and brake fluids. Even though the brake fluid on my 1999 Explorer tested showing no water contamination, the test strip for corrosion (copper) was over the charts. I retested after draining a front and rear caliper - even worse - color indicated beyond the 300 on the chart. After replacing the fluid in the master cylinder and replacing with fresh, flushed each caliper starting at the right-rear. Re-tested the fluid at the calipers again, and it still shows a bit of color change but way better. Cooling system testing was good too - found one car has only a 30% mix and in the acid range, my other car tested >50% mix and safe acid range. Of course the one that needs to be flushed and replaced is an older Toyota that has more expensive coolant.

A little difficult to understand at first because the instructions were vague, but stick with it - these work REALLY well. I found one of my vehicles had bad antifreeze and corrected it right away. I would never have known. Don’t delay on this - bad antifreeze destroys head gaskets

I AM IN SCOTLAND I SEEN IT ON YOU TUBE BY SOME AMERICAN MECHANICS I LIKE TO WATCH, ITS, GREAT.... OMAR.

FAST, EASY, ACCURATE!!

a very useful diagnostic product

Praktisch in gebruik en werkt kostenbesparend

Worked well my brakes needed bleeding and this told me it but price seems a little bit steep