I replaced the propane regulator on my travel trailer and they told me to be sure to not use white teflon tape. I guess there is yellow tape made for gas connections, but they said they didn't use it either. They use the yellow (for gas connections) stuff in a squeeze tube, because they have seen tape pieces from connections break off and clog the orfices in gas appliances on RVs.

I saw a movie where only the military and the police had guns. It was called Schindler's List.