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Changed the oil on a friend's 2 year old honda - he always had the
dealer do it before that since new - the filter had never been changed
- o ring was stuck to the block and had same level of filth on it as
engine block. So it does happen - doing your own maintenance is
simple, faster than going to a garage/dealer for it and a whole lot
less risky than going to an instant oil change place.

Who are you going to trust - very few if any.