How to find A/C leaks, signed............A Complete Idiot

a little bit o' pressure from your freon and a lot of soapy water in a spray bottle. spray joints and watch for bubbles. Safe and free. There is a misconception of propane blowing up from a leak. It has to pool and concentrate to between 2 and 10% of the air mass. That's a lot of propane in one spot (in an unsealed engine bay no less!) to go kaboom, especially from a pinhole leak in an A/C system. I'm calling BS on that kaboom story.
Makes for a great urban myth on the virtues of R134 but the facts don't jive. We had to take a class on our CNG vans when we got them and one was safety. They took a rifle to the tank and it created a hole, that hole was next to a flame and the flame blew out. They could not get the kevlar wound tank to "blow up" short of putting a C4 charge on it and blowing it up which ruptured the tank AND provided a stable ignition source.
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