Curious
My 2010 F-150 4.6 V8 is 36 month old. Purchased new. Change oil every 5K with full synthetic. 20K miles at most recent oil change today. First time I actually measured. Seems to have used about 1 quart out of 6 since last change about 9 months / 5K miles ago. Question. Would that amount of oil loss appear to be acceptable/usual or something to investigate. There is no leak, I've checked.