Has anybody used any of the "EnviroSafe" regrigerants. Advertisements say they are much more efficient than either R12 or R134a, and, as the name implies, environmentally safe as well. One of my upcoming projects on my new truck is to try and get the A/C up and running. The trucks black color (both inside and outside) make the cab about twice as hot as usual, and I's gots to have sum relief!!!
