Jay, have you ever tried Wash Wax All? That's what I use and it seems to
work very well. It's made for airplanes, while Lemon Pledge, let's face it,
is made for furniture.

I've used Lemon Pledge on the windows but wonder if it might also seal dirt
in as it apparently did with your airplane fuselage. My old instructor
recommended Novus for the windows. I've used that for two years and it also
seems to do the job fine.

Henry

P.S. How much would your son charge to do the underwings and
undertailfeathers of a 150? That wrecks my back. Might be worth a trip out
to Iowa City.