Super Tech Auto R-134a Refrigerant with Stop Leak, Self-Sealing Can, 3 fl oz

1st of all makes sure you know how to use and refill any R-134a units and have the proper pressure gauges. This is really easy to install a small amount in your cars/trucks R-134a air system. Its a re-usable can, as it has a self sealing gasket on the output spout. Caution and care should be taken all times using this can cause you are dealing with a high pressure system. The die inside is red so if you do have any leaks in your cars/trucks air conditioning system, it will bubble out either red or pink. This should take care of any very small leaks, but it is not a fix-all for system with major leaks or problems. Price is reasonable.

Fixed up my leak in my car and I'm thrilled! Can't recommend this enough!!! Totally worth it. Fixed the leak so good, and saved my a ton of money. So easy to use

I've used Stop Leak several time in the past and had varying results dependent on the size of the leak and the location. I used the sample provided this time in both of my older vehicles that had very slow leaks with the hopes that it will make them slower or disappear. In my case a slow leak is something that after a current charge lasts for about a year before needing to be topped off again. This product is effective if the leak is very small caused by an O-ring or older hose starting to become perforated. It does not do well on shaft seals on the compressor or evaporation or condensation coils metal or cracks. It mainly works on rubber like materials causing them to swell and therefore block the leak. This particular Stop Leak sample came with a re-sealable top. I found this to be a great idea if you didn't want to use the entire content at one time. However, I had trouble getting the contents to empty into the system because the valve opening wouldn't let the material easily flow out of the can. Additionally, the instructions on the can do not indicate if the can has a dip tube in it to let you know which way to orient the can when trying to empty it into your system. The instructions say when the can is empty to hold it upside-down to fully drain it out. Does that mean you hold it upright to start with? I don't know. My previous experience was to always hold the can upside-down to empty the liquid because there was no dip tube in the can but with this new resalable top maybe things have changed. I was only able to expel 2oz from the 3oz can. So, I therefore knocked off 1 star for not being able to get the entire product out of the can.

My air conditioning went out. Took the car to the dealer and it was going to cost a bundle to fix. So I used this instead. Air is working great. Saved me a bunch of money. You will need a recharging hose for it. Directions are on the can. Print is tiny. But follow the directions of the recharging hose too. You can only use a self-sealing valve recharge hose (or adapter). It was delivered to my house so I didn't even have to run out to get it.

My husband helped a friend with an air conditioning issue in their car. They were going through a can of Freon every two weeks or so and couldn't afford to pay a huge mechanic's bill at the dealership. They couldn't pin point where the leak was coming from exactly, so he used a can of stop leak to seal it up and it works perfectly now. Blowing cold for over a month now

This is some fantastic stuff. This refrigerant with stop leak actually works. Our camper air conditioner uses the same kind and we had a small leak so we put this in it to see if it actually works and it does. We was extremely happy. Great product would definitely recommend to anyone.

The air conditioner in my car has been leaking refrigerant for quite some time now. I was told about Super Tech R-134a Stop Leak and decided it would be cheaper to try it than having a technician fix it. It worked, no more leaks. Super Tech Stop Leak sealed the leaks and I have cold air again. It comes in a 3oz can with clear and easy to understand directions on the back of the can. If I can do it, anybody can.

I struggled with this. I couldn't get the hose to attach to the can. I ended up having to get a family member to help me. He muttered several cuss words as he struggled with it. We went to auto zone and they shook their head and tried to sell me a different brand with the hose already attached. We are not sure if we got any of it in the van, I do not notice a difference. I don't know if I just got a defective can, or if it's really supposed to be this challenging to use, but my suggestion would be to include a fill hose with it that can be snapped on EASILY!

Pretty good. Only time will tell, but instructions are clear. Easy to use. High pressure can-becareful. Seems to be working. I'm cool now lol It has additive to help seal smalls leaks leaks and the die is red so should show if there's any big ones. Didn't see any so all good

My husbands car had a leak around his hoses. This was very frustrating for him. We used the R-134a Stop Leak on it and its like new. Its very easy to use and comes in a convenient can. It really is a miracle in a small can. Its saved us a lot of headaches and a huge fee from an auto mechanic. I would not recommend this on electric vehicles but works great on ones that use gas. Its a 3 oz can and contains conditioner for improved durability of o-rings and other rubber components. Lubricates new compressors and quiets squeaky compressors. It connects to recharge hoses made for self-sealing valves.and is compatible with all automotive air conditioning systems that use R134a refrigerant. Make sure you wear protective gloves when you use this.