I just realized that for the first time I can actually contribute to this thread I started almost 16 years ago!
My Civic has 151,000 miles on it, I bought it in 2011 with around 80,000 on it and I've done one year oil changes since I got it (OCIs varied from 3k to over 10k) I started out using Toyota 0w20 for the first couple of years, then M1 0w20 for the few years in the middle and for the past two years I've used Pennzoil Ultra Platinum 5w20.
My Civic has 151,000 miles on it, I bought it in 2011 with around 80,000 on it and I've done one year oil changes since I got it (OCIs varied from 3k to over 10k) I started out using Toyota 0w20 for the first couple of years, then M1 0w20 for the few years in the middle and for the past two years I've used Pennzoil Ultra Platinum 5w20.