On Tue, 1 Mar 2011 17:37:10 -0800 (PST), Frogwatch
wrote:

On Mar 1, 7:59*pm, L G wrote:
Google results show differing opinions. *Has anyone used Teflon tape
without success on a fuel line thread?

TIA,
Larry

GreaT question. I have always thought teflon tape was impervious to
everything.

PTFE can absorb certain solvents and will swell, along with passing
material through the tape