I recently changed the oil in my 2010 Civic. Since new I have been using Mobil 1 5w20 synthetic. I have just under 19k miles and time rather than miles prompt my oil changes The oil bung is 17mm.
I also bled the brake system ( one year late..ooops) using genuine Honda fluid, 2 containers. I used a mighty vac model MV8000 to suck the fluid out at each wheel. The front bleed nipples are 8mm and the rear 10mm. I used a turkey baster and removed as much fluid out of the steering pump reservoir as possible also. Once topped off I rotated the steering wheel ( engine off) left and right a few times and repeated the procedure. I also used 2 containers of genuine Honda fluid. The cabin air filter was changed also. I used Purolator brand. Please be careful of the orientation for the airflow labeled on the filter itself. The airflow is from up to down in the car( oriented while sitting in passenger front seat). I also changed the engine air filter with a genuine one. I changed the wipers too! I used good year brand that was a two for one deal at Costco. The drivers side is longer , 26mm, and the passenger side is 22mm. The Honda dealer in town do carry the refills for the blade that came with the car and were just about 7 bucks each. I might get a pair and reinstall the originals next time around. So don't throw out your originals! The next items on the agenda are the Tranny fluid and possible brakes towards the end of the year. She is purring pretty nicely!!!!

 

Sounds like a full day.

 

Yes , it was a long day! Bleeding the brakes took the longest

 

Having someone to help cuts down on time spent.