"belive that Pat already stated this in another post." Thanks -- I see it. When I first read it quickly (previously) I though he might be joking ... but it makes sense. I'll likely use my trusty Ivory Liquid dishsoap.

Joy, joy ... finished the first wash ~8 p.m. last night, drove to work for the first time today with the XF, and a jerk blew fresh-cut-grass clippings all over it sometime during the morning. And many stuck. I wonder if it was intentional.