For all you neigh sayers...you were right. The RTV didn't hold. Well it did...for a while. Started the car and allowed it to warm up. Watching, watching...raised the RPM several times, 2000, 2500, 3000, 3500, 4000...no leaks. Yeah! Let it idle a few minutes...same progression...no leaks. Yeah! Turned it off and let it sit for 10-15 minutes. Started it back up and ran it up the through the RPMs again...LEAK ... So tomorrow night I will be removing the sender AND extension and performing exhaustive tests on the two to determine which is at fault. Will keep you posted.