Fuel Level Sensor tank (above header tank) gas leak

[tracstarr]

I wouldn't use that. If you are talking about the threaded connection, I recommend PFTE thread sealant, ensure that you use one that is not affected by petroleum products.

Permatex does have that product.

This is what's on there now and didn't seem to work. Or maybe I just applied it badly. Probably the latter since all other areas are fine.