Green color liquid from the high side of A/C charge port

[dcdyd]

Today, I tried to check the A/C pressure using a gauge. When I attached the red cable to the high side, may be I was a little slow, there is some green colored liquid coming out. Once the hose is securely attached, it stopped. I just wonder what could be that. Couple years ago, my A/C was checked and recharged by mechanic. I wonder what kind of liquid that was put in.

 

[waskly]

ac dye.

 

[FordGT55]

As he said its ac dye and lubricant. Stuff sucks when you get it on your hands.

 

[dcdyd]

That is good to know. Thanks! I thought that sc dye can't be seen unless using a special glass.

 

[masospaghetti]

If you use the "special light" (a UV light and tinted glasses) even small traces of the dye will literally glow and be extremely easy to see.