Skip, Keoke and all,
Thanks for all the info and advice. The car is at a friend's who's worked his magic on her many other deficiencies in the past couple of months (install electric fan, space-age insulation, wiper motor restoration, repair of 50-year old radio (it's so cute), extension pedals, and oh so much more - thanks Charlie!) Still waiting for better weather for the chip repair, then will print out this thread, consult with whoever will lend an ear, and get to work on resolving her oil consumption problem.
Sharon