Okey Dokey. Let me know the results. One other thing I was thinking of, when was the last time your PCV valve was changed? Its kind of a long shot, but I suppose if it were stuck open with gunk it could allow oil to get sucked into the engine and burned. If that were the case though, I would think the engine wouldn't be running so well either.

PCV = Positive Crankcase Ventilation. Any mechanic will know what this is.