First oil change and a slightly stupid question
I've gone and done my first oil change and decided to go with Motorcraft synth blend and filter seeing as how they're Ford recommended and price was good for my purposes (not driven hard, no stop-go traffic), and people seem well satisfied with it.
But onto the main part of why I'm posting this thread, after I had drained the oil and replaced the filter, it was time to put in the new oil. I put in the first 5 1/4 quarts of oil and everything is dry underneath. But then I foolishly decided to start the car to get the oil flowing before I add the remainder of the oil, thinking it will help or something.
I start up the car and it makes no noise for the first 10 seconds or so, but then I hear a familiar chatter noise that I sometimes hear on morning start-ups. I let it run for no more than 25-30 seconds tops, and shut it off. I add the remainder of the oil and close everything up and it's bone dry underneath. Test drove it and everything seems to be hunky dory.
So my question after this wall of text is; did I harm the engine by starting it up without the full 6 quarts of oil?
TL;DR: Filled up the engine with 5 1/4 quarts, started and idled it for 20 something seconds, shut off, added the rest. Did this hurt anything?
EDIT: Also I had the oil cap off while it was idling, not sure if this causes an issue.