Chevrolet 2008 Silverado 1500 Pickup Owner's Manual page 510

CAUTION:
{
Rust or dirt on a wheel, or on the parts to which
it is fastened, can make wheel nuts become
loose after time. The wheel could come off and
cause an accident. When you change a wheel,
remove any rust or dirt from 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 needed, to get all the rust or dirt off.
See Changing a Flat Tire on page 5-94.
5-104
6. Remove all the wheel
nuts and take off the
flat tire.
8. Install the spare tire.
CAUTION:
{
Never use oil or grease on studs or nuts.
Because the nuts might come loose. The
vehicle's wheel could fall off, causing a crash.
9. Put the wheel nuts back on with the rounded end of
the nuts toward the wheel.
10. Tighten each wheel nut by hand. Then use the
wheel wrench to tighten the nuts until the wheel
is held against the hub.
7. Remove any rust or dirt
from the wheel bolts,
mounting surfaces, and
spare wheel.