Buick 1993 Century Owner's Manual page 261

Using Foam-Qpe Cleaner on Fabric
Vacuum and brush the area to remove any loose dirt.
Always clean a whole trim panel or section. Mask
Mix Multi-Purpose Powdered Cleaner following the
Use suds only and apply with a clean sponge.
Don't saturate the material.
Don't rub it roughly.
As soon as you've cleaned the section, use a sponge to
remove the suds.
Rinse the section with a clean, wet sponge.
Wipe off what's left with a slightly damp paper towel
Then dry it immediately with an air hose, a hair dryer
surrounding trim along stitch or welt lines.
directions on the container label.
or cloth.
or a heat lamp.
Wipe with a clean cloth.
Using Solvent=Qpe Cleaner on Fabric
First,
see
if you have to use solvent-type cleaner at all.
Some spots and stains will clean off better with just water
and mild soap.
If you need to use it, then:
Gently scrape excess soil from the trim material with a
clean, dull knife or scraper. Use very little cleaner,
light pressure and clean cloths (preferably cheesecloth).
Cleaning should start at the outside of the stain,
"feathering" toward the center. Keep changing to a
clean section of the cloth.
When you clean a stain from fabric, immediately dry
the area with an air hose, hair dryer, or heat lamp to
help prevent a cleaning ring. (See the previous
NOTICE.)
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