Last November, on an Angel Flight mission, just 20 minutes after leaving my home base (6G1), approximately 7 miles from YNG VOR, I noticed a film of oil on my windshield, I immediately requested to land at KYNG, we were in IMC so they gave me vectors for the ILS32 approach, very quickly my forward visibility was almost zero and we briefly had smoke in the cockpit so I declared an emergency. Within fifteen minutes or so we were safely landed. My forward visibility was so poor I had to use my side windows to land and taxi. Needless to say it was a wonderful sight to break out of the clouds and see 9000' of runway at my 12 o'clock, my AF passenger was great, he didn't utter one word until we were landed.A maintenance crew from Winner Aviation (FBO) found a cracked flair fitting on the prop governor oil line (it was barely visible with the naked eye). In the 15 minutes it took to land the plane the engine lost four of its eight quarts of oil. No damage was done to the engine.
Photo of cracked fitting attached, blue object is pen light.
If anyone cares to listen to the ATC recordings PM me your email and I'll send them to you.