Michael S. Nichols wrote:

>My headliner is cigarette stained ... I would like it to be
squeaky clean and WHITE, not yellow.<

Michael,

I am certain a solution of TSP (trisodium phosphate) will work and that is
what I would try first.  When I owned a fern bar, TSP was recommended to
clean the cathode plates of the electostatic precipatators, aka smoke eaters.
 After a good Saturday night, we are talking about cigarette stains which
could be used for floorcovering.  It would also clean that tenacious stuff
off plastered wall painted with oil based enamel paint.  That required a
dilut solution and some care