Changed the oil in the C @ 52,301.
In a contribution to other threads on other forums, apparently about 1/2 a quart is retained in the engine after draining. I drained the oil when it was d@mned hot (after a forty-mile drive)
I filled (+/-) the filter before putting it on, put in five quarts of Pennzoil's best dino-oil and backed 'er off the ramps. I let it settle for a few minutes and checked the stick. It was just below the bottom of the "safe" mark, so I added a pinch over a quart. Right on the "max" line! Hee, hee. That was 6 1/2 quarts total.