Chevrolet 1995 Lumina Owner's Manual page 235

The purpose of regular rotation is to achieve more
uniform wear for all tires on the vehicle. The first
rotation is the most important. See "Scheduled
Maintenance Services" in the Index for scheduled
rotation intervals.
After the tires have been rotated, adjust the front and
rear inflation pressures as shown on the Tire-Loading
Information label. Make certain that all wheel nuts are
properly tightened. See "Wheel Nut Torque" in the
Index.
m
U
When rotating your tires, always use the correct rotation
pattern shown here.
Don't include the compact spare tire in your tire
rotation.
6-37