I'm sure they must go by some giude for the service, I'm not sure if there is less room to get at the lines in the escape vs my taurus but it still shouldn't be that bad. still if they go by a guide the rate should be the same no matter what. The thing is the cd4e doesn't age well, there is post on here already for a contour that won't shift when warm, they used to have tss issues in the earlier years. If you can swing it getting the the machine flush is the way to go, like I stated it gets the converter. alot of times the issues with the cd4e is poor maintenance, fluid gets bad then valve body issues pop up, the sensors are easy to change but those are rare, unless you have the 2-3 hard shift.