The media is fully wire backed, so when I went to straighten some of those pleats, it took quite some force. I'm wondering if the filter was in bypass at all.
Well the engine burns about 1-2 quarts of oil every 5k miles or so, but I changed the oil at 7,000 miles, then at 10,000 miles, and finally at 9,000 miles. We did a 5400+ mile road trip for the second interval, so I didn't have time to stop in the middle of Utah or Yellowstone to change my oil. I had to pour in quite a bit of oil on the way.
New plan is to change it every 6,000 miles with a fresh PF64. The owner logs a lot of miles on this car, more so than I could ever do myself.
The oil is generally filthy with this engine. Even after a fresh oil and filter change, the oil on the dipstick turns from clear/fresh to black. This old filter had a lot of residue stuck to the metal shell, reminds me of worn metal shavings in differentials and transmissions.
Glad you enjoyed the pics!