The O-470 in our club's 182 is currently just below 1650 hours. Runs great, oil samples come back fine. On a recent long trip (just over 9 hours) it used about 3 quarts of oil, which is more than what it used to use. I doubt if it blew much out as we have not been filling it over 11 quarts because over 11 quarts it does blow it out.
Any thoughts? Given how it is running & the good oil sample results I was hoping to get it to 1800 hours or so before we had to do anything.