TSI Supercool 39241B-YF HFO-1234yf Total Leak Stop Plus U/V Dye. (NOT for USE in R134a Systems)

Bought this on a "see if it works" thought. So far, it sealed up the small leak, and the A/C has kept its charge. So far so good.

The item didn't work. I followed the directions carefully. The compressor kicked on but the green stuff didn't leave the can and go into air conditioning system. It barely went into the tube at all.

I read where some people had issues but there were not many choices so I gave it a try. I had no problems, put it on the low side port started the engine and turned the ac,I pressed the button on the top and it went in with no issues. After that I charged the AC to the proper pressures. One week later no leaks AC is nice and cold.

It's good and for the price it's great. I had a leak in my car and my air conditioning wasn't working and this helped me a lot this summer.

Used this on my 2016 Honda Civic and it sealed up everything now my AC works for the first time since purchasing the car two years ago. It works wonderfully!

Did not stop my leak! Don’t waste your money!

Good

Exactly how described and expected