How bad is what I did. Wanted to go riding and only oil I had was some 10w 40 I had in the garage. Usually use yamalube but didn't get off work in time to get any. Long story short I used it. Hadn't had any probs yet but it's only been couple hundred miles. Got my slugs and one way bearing in the other day. Gonna drain oil of course but just wondering if I did any damage.