Cadillac 1993 Fleetwood Owners Literature page 256

Raise the vehicle by rotating the wheel wrench clockwise. Raise the
vehicle far enough off the ground so there is enough room for the spare
tire to fit.
Remove the wheel nuts and take off the flat tire.
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CAUTION:
Rust or dirt on the wheel, or on the parts to which it is fastened,
can make the wheel nuts become loose after a time. The wheel
could come off and cause an accident. When you change a wheel,
remove any rust or dirt from the places where the wheel
attaches to the vehicle. In an emergency, you can use a cloth or a
paper towel to do this; but be sure to use a scraper or wire
brush later, if you need to, to get all the rust or dirt
off.
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