Thanks CaspianM for that UOA link. I used to run GC Gold/Green 0w30 in my Sunfire every 2-3k (yes, I admit I had a serious OCD). So leaving the factory fill in this long is insane but even Patman suggests that it should be fine either way.
I'm hoping the Civic's 1.8L i4 is easier on oil than the Accord - maybe that's why the MM is suggesting 11k+ miles?
Yesterday, I went to the Honda Dealership's new owner's dinner - they raffled off some really cool prizes (tanks of gas, details, oil changes, stuff - I got a car car kit). They gave us a tour of the dealership - we even got to talk to Honda techs for a good half hour. One tech showed us an old Civic manual trans where the owner had broken teeth off of the brass gearing and sheered down the heavier teeth (he had it in pieces). Was REALLY impressed with the whole thing.
I noticed there was only Honda 0w20 Semi-Synthetic on the part's floor. Maybe you have to ask for the Full Synthetic? I didn't have time to ask.
@garlicbreadman - I agree.