My wife's 2003 CR-V has nearly 6k miles on the oil, which is M1 5w30 (great for our cold winter) and a Supertech filter. I had intended to change the oil at the 6-month mark (for convenience), but note that the oil still looks (and smells) very fresh. I am impressed! The recommended OCI for this car is 10k, but I am slightly worried about the Supertech filter...I'm not sure how well they hold up under extended OCI. Should I change it? The next round of filters will be Pure Ones.