While the normal Teflon tape will have of level of working, they do actually make special Teflon tape for LP gas.
And if you are going to buy something, if you go in Home Depot, look in the gas section and the gas tape has a yellow color plastic holder as opposed the normal white rolls. The actual gas tape is a slight off white in color. This is the brand they sell Yellow gas rated tape
They also sell Gas rated Teflon goop sealant with a brush in the can. This is the brand they sell in Home Depot for gas Gas rated PTFE paste
I agree if it is flared fittings, no goop/tape needed. If it is NPT, then you need goop. You should not have actual compression fittings, meaning the straight fitting with a compression ferrule on gas systems. Gas uses flared fitting or NPT.
Once you connect up, use soapy water over the connections and look for leaks.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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