ok. I changed my oil for the first time in my 06 civic EX coupe (1.8L). The oil filter i pulled off the car looked different than the oil filter I had to replace it. Both were manufuactured by honda. The size was the same but internally there were some slight difference i.e. there were 6 ports instead of 8. Ive heard all hondas use the same oil filter now except for the s2000 and the pilot. Any help on this topic would be appreciated.