Crawling under the truck...

[dhirocz]

Refrigerant U/V dye, like that is used in A/C systems. You can get it in a tiny bottle. Doesn't take much...wouldn't use much either. A small...and I do mean a small amount.

Something I learned along the way. Most will end up in the dryer cartridge. I've heard some people put it into the compressor inlet, to help atomize it somewhat...I've heard of people who put it into their air tanks but that seems dumb to me. It needs to be able to get picked up by the airstream to move about the air system, that's the idea.

Soapy spray bottle works well, this is supposed to be for those anal types like me I guess. Find even the tiniest of leaks. Wonder what rawze thinks about it...?