Red Angel 00222 A/C Stop Leak & Conditioner - 4.5 Ounce

Worked for me. My leak is in the condenser coil, the extra radiator that is in front of the main engine coolant radiator. This is in the high pressure part of the system. It did not seal the system the first day. I needed to add more coolant the morning of the second day. But the coolant that I added that second morning has now stayed in the system more than a week and the system continued to work and cool the car even driving through the desert south western states.Prior to adding this, the coolant would leak out overnight.

I had 2 small leaks within my automotive A/C system, both in areas with no moving parts, best suited for this product to chemically seal as designed. The leaks were identified with a Halogen Detector, considered to be too small easily diagnose with UV Dye. Based on the detectors leakage sensitivity level a leak of 6 oz/yr. was detected in the evaporator (looks like the evaporator was leaking in the center out of multiple areas) and 3.5 oz/yr. in the condenser (right in the center of it). Both pieces would need to be replaced so I figured this product would work.After applying a vacuum to the system, I first started with the A/C stop leak, applied the product as directed, dispensing the entire contents first. I followed this by charging the A/C system with refrigerant to capacity. Over the next 2 weeks I used the vehicle regularly with the air conditioner. After I re-verified if the leaks were still present, I found that the leakage rate in the evaporator was within the same leakage rate zone (4-6 oz/yr.) , while the condenser, may have been showing false positives, likely was still leaking, albeit a very marginal rate < (1 oz/yr.). I considered this unsuccessful.When attempting to call upon the product's well stated guarantee claim with the manufacturer (Blue Devil Products), I was ultimately met with this email:Grant-You may have seen on our website under the Warranty/Returns tab: "Any online purchases made from unauthorized re-sellers are not warranted by BlueDevil Products." Unfortunately, we are unable to honor the warranty for your purchase as we can not access your order through our Amazon Seller account.You may contact Amazon direct at 1-888-280-3321 to obtain your refund. Be sure to have your Amazon order number available when you call.Sincerely,Apparently, Amazon LLC is not an authorized re-seller since BDP has their own storefront on Amazon. Additionally, I inquired which retailers were considered authorized retail outlets; after which I was immediately met with supreme sarcasm that all major automotive retailers: AutoZone, OriellyAuto, NAPA (basically the typical brick and mortar store) are all authorized, as well as WalMart. They also kept redirecting me to see their Warranty and Returns page like as if I did not get the Memo. Yeah, since that is my primary goal, to go and decipher a company's red tape and determine every condition in which their warranty does or does not apply. To me, it sounds like a bs scapegoat to wiggle out of that guarantee so proudly slapped on every piece of marketing material they own. The correct answer would have been, "we are sorry our product did not work, could you try giving Amazon a call first and if they are not able to refund you directly, give us a call back and we will make it right! Does that sound good to you?"So if you plan to purchase this snake oil, make sure you do it at a brick and mortar store, or directly from BDP. I was gravely mistaken to think this product would work anyway. To put it into perspective, if DuPont, one of the largest chemical companies in the world, creators and pioneers of most refrigeration chemical technology has not come up with a viable leak sealer with their massive R&D budget, then most likely, neither has anyone else.Note: Amazon was nice enough to cover the warranty (refund or replacement at your discretion) for this product, and will do so for 365 days from the date of purchase. The Amazon representative stated warranty claims are charged back to BDP.

I saw a lot of mixed reviews so I was going to add mine.I went to an air-conditioning repair shop local to me and that was their specialty . I spent several hundred dollars and they said it was fixed and I went out the door happy. This lasted 5 days.Two months later, I returned to the same shop and they said that my air conditioner pump had failed and again for several hundred dollars more they installed a new one.Both of these times within a week, the refrigerant was lost and luckily winter time came to Florida and I went back to 2 70 air conditioning (2windows 70 mph)I took it to another air-conditioning repair place and they quoted me $2400 to replace my air conditioner for everything that was needed. Here I am six months later with a hot truck.After doing some research, I decided to pull the trigger on this product. I followed the directions and inserted into the low pressure port and was able to get all of the material inside. Unfortunately there was not enough refrigerant inside to fill the system.Waiting a couple days I went to an auto parts store and bought refill kit and brought the system into the green. With the leaks I had before it would usually last 2 to 3 days before going back to blowing hot air again.It’s been three weeks now in Florida and I still have cold air blowing through the system like new. I’m not saying it will work for you but what I am saying is it worked for me and saved me $2000 to $3000 dollars plus time without my truck for work.

As a skeptic of ALL stop leak products of any kind due to their potential to clog systems, I was somewhat cautious about using this product. I was experiencing a slow refrigerant leak in my AC in which the system would begin to blow warm air after about every 3-4 months following a refrigerant recharge. When I saw this Red Angel by BlueDevil stop leak indicated it is “non clogging” and also supposedly safe for refrigerant recovery machines, I thought I would give it a try. I installed the entire can in early June and it’s now October and the temperature of the output air from the dashboard vents is still around 42°F, as it was when originally installed. So far so good, but the real test will be next spring when I have to again begin to use the AC. I will update at that time.As for the short hose on the can, I fortunately did not experience any issue with this because the low side service port on my vehicle is up top, just off from the accumulator, with no obstructions nearby. But I can definitely see how this can easily be an issue with servicing some vehicles. So overall (and so far), my experience with this Red Angel stop leak is definitely positive. Just keep in mind that there is no true “fix all” in a can. If a leak, no matter on what or where, is too large then nothing short of mechanical repair or replacement will resolve it.UPDATEAs indicated, I am following up on how well this Red Angel by BlueDevil stop leak has held up over time. It is now April of 2024 (about ten months after initial installation) and I have, with the conclusion of winter here, started to once again use my vehicle’s AC. I can report that the unit is still blowing 42° air from the dashboard vents! Of course this does not mean that, over several more months or even years, the leak won’t return. But it did obviously hold up over the end of last summer and the long winter months. I will give an additional update, if or whenever the leak does return.