It's time for an oilchange. Yes, I know how to change my oil. Thing is I usually use Penzoil High Mileage 10w40 with ACDelco filter, but I was considering K&N filters and maybe Royal Purple? A friend of mine swears by them and I'm wondering if it's worth the price.
Also, someone mentioned using a different size filter for some sort of benefit and I was curious as to what that entails. Any opinions?