I had a 2007 Mercury Pro X's 250, when I traded it in it had over 1100 hours over the course of 8 years. The motor was still strong & compression was good. I took very good care of the motor, yearly service maintenance, plugs, impeller & lower unit oil changed 2x a year. Only major issue I had was air compressor would go out. Take good care of the motor & it will take care of you. I am currently over 2 years on another Pro XS with over 260 hours & no issues, yearly maintenance is the key.
Edited by Alan Perrin (06/17/17 03:57 PM)