I have a 1997 Honda accord with 196k miles. My oil seems to be very dirty when i change my oil every 3k miles. Does this seem like engine slugde if so does anyone have any recommendations on how to get my oil cleaner? maybe a oil engine flush? I've heard that you shouldn't get an engine flush. I've been doing some searching and found Auto-RX has anyone used this before? Any recommendations or help would be great, Thanks.