Cool-Shot Ultra Car Air Conditioner Restore Original Efficiency Additive 6ml Syringe with R134a Adapter

If used properly it works fine. You have to have a basic understanding of how the system works before you just throw the plunger on the adapter, or it will shoot it our everywhere. First connect the adapter to the hose, and then the adapter to your ac line. Then connect the syringe to the hose, and maintain pressure on the syringe. The system is under pressure, if you connect everything First then to the adapter it will shoot the plunger out. Once you have it on, you slowly inject the liquid. I used it on a 134a system and didn't loose a drop of it at all. Now for it's effectiveness.... it works. It dropped my cooling temps down at least by a few degrees. I didn't measure the temps, but it was enough tk be able to tell just by feel. But you have to keep in mind, this isn't a miracle, if youre low on refrigerant, have a leak, a faulty ac compressor etc, this isn't going to work. Everything else needs to be in working order before you try this. My problem was my ac system worked ,was full of refrigerant, but still just didn't blow as cold as it should. After the shot it definitely blows colder now. For the price if you're having similar symptoms it's worth a try. And if you follow the instructions, have at least a basic understanding of how the ac system works and are a tad mechanically inclined it's very easy to use. But if you open the hood and have no idea where the "low side" is on the ac, this product isn't for you, or you should get someone to put it in for you.

Not worth it! The valve of the R134A fitting did not work and the syringe simply burst and I lost all the liquid.... I found the product too expensive and fragile to apply a liquid in a pressurized system! I don't recommend this product.

Don't waste your money, did not do anything, the shot barely have anything in it. It's a complete scam

Arttikel schnell erhalten, R134 adapter passt perfekt. Alles wie beschrieben. Einfach praktisch gut.

Na vervangen condensor en nazicht systeem, dit spuitje toegevoegd. Erna zakte de uitblaastemperatuur nog 1.5 graden en draaide de compressor stiller.

Non so cosa abbia fatto all' impianto di condizionamento della vettura, non noto differenze. Il mio interesse era quello di lubrificare meglio all' interno e di aumentare la durata delle componenti e diminuire la manutenzione. Speriamo.

Péssimo. O mecanismo é de plástico, vazou todo e o produto se perdeu. Horrível. Não recomendo.

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