Pipe dope better solution than tape.
No, teflon tape (and pipe dope, for that matter) should never be used on flare fittings. They are designed to seal without tape or dope, and may actually leak if tape or dope is used.
If you are running natural gas or propane, gas teflon tape. Otherwise, any white teflon plumbers tape is fine.
Taape or joint compound on the threads the same as any other pipe fitting, but not on the threads where the two halves connect.
Yes
I believe around the 1970's
No, teflon tape (and pipe dope, for that matter) should never be used on flare fittings. They are designed to seal without tape or dope, and may actually leak if tape or dope is used.
Many fittings, except unions, require the use of teflon tape.
yes
Teflon tape only, no joint compound. Two or three wraps is plenty... Yes agreed, teflon tape will make it easier for repairs in the future
Yes, but only if it is necessary.
You do not need tape on any flared fitting, brake or regular. The brake line and the fittings are different size and thread type than regular copper line and fittings. You can't mix them.
It's real important to apply your Teflon tape in a clockwise direction which coincidentally is the same way you thread on most of your fittings.. If you apply the tape in an anticlockwise direction it will unravel as you screw on the fitting which will render it useless. To apply , this is what l find the easiest.
Not necessary, but recommended along with pipe thread compound.
Teflon tape is a solid.
no.
yes you just have to make sure you put the tape the same direction as the threads. Also be careful not to have the tape before the threads or you will get particles in your fuel system.
If you are running natural gas or propane, gas teflon tape. Otherwise, any white teflon plumbers tape is fine.