One thing about the oil change, there is a crush washer that goes between the oil drain bolt and bike. Being that it's a crush washer, you may not notice the washer as it has become crushed against the bolt and it will appear as one piece. Personally, I do not replace the crush washer, only when I replace the bolt. Haven't had any issues leaking or anything.
I use Purolator filters too, and I have 98k miles on my bike.
I use Purolator filters too, and I have 98k miles on my bike.