Originally Posted by paoester
Assuming you are checking the oil in the morning before driving it, and on level ground each time, you could try this:
https://www.bobistheoilguy.com/foru...mium-blue-restore-10w-30-in-a-honda-2-4l
which is something very serious which dissolves carbon on the piston rings since its a common issue with some 6+ year old engines.
But before you use that stuff---->
You mentioned it was always at the halfway point on the dipstick. Does it continue to get lower on the dipstick, like below halfway to the lower line or other mark on the dipstick? It is perfectly safe to run the engine halfway on the dipstick, no problems with that. It is fine, as long as it doesn't get much below the lower line, like 8 mm below the bottom line, no lower than that, estimated. (The oil pickup is very low in the sump.)
Also, do you ever see bubbles on the dipstick right after running it at the full line? Bubbles indicate it is hitting the crankshaft, which would cause some oil consumption, and means it is over-filled there. I mention that in case the wrong dipstick, of the wrong length, maybe from another Honda, was accidentally put on the engine at some point.
Always top it up once it reaches there never observed to see if it gets lower. And never yet observed bubbles.