last gen 4 cyl. camry has a T-SB on oil consumption. (current available t-sb)
the fix is new pistons, reengineered. 3 select fit sizes available based on cylinder wear.
take out (bad) pistons have sludge / oil residue contaminating the oil control rings. the engine then develops oil consumption issues. If i remember the updated pistons have larger oil drain holes and are designed to not accumulate oil / sludge on the piston oil rings. With dealer records the manufacturer can and is goodwilling this on cars "that are out by miles".
soooooooo. ..........we are not completely out of the sludge days, not 100%.
sorry, but for me its a 5k interval. hey its a preference right?
5 years from now there will be thousands of camry owners that did the 10k thing and others that did 5k, all probably just as happy as the other. time will tell.
for me its not the "can the oil hold" question, its all the other little details that have not yet surfaced. if a 5k interval dealer serviced 4 cyl camry comes in at 110K burning 1 qt oil every 500 miles anything is possible. the T-SB addresses the oil burners as I have witnessed firsthand.