It is always a hassle to deal with a flat tire but changing a tire becomes even more of a headache when you encounter a stuck nut. The nut may simply be too tight or it may be stuck in place because of rust or other sorts of grime and debris. Dealing with a stuck nut is frustrating but a little patience, the right tools and a little elbow grease usually leads to success.
Lubricate the nut with a penetrating oil such as Liquid Wrench. Liberally apply the penetrating oil to the thread and base of the nut. Allow the oil to penetrate the nut for ten minutes.
Tap the nut several times with a hammer.
Place a four-way lug wrench on the nut. Place a long pipe on the wrench to use for leverage. Put on gloves to protect your hands. Try to loosen the nut. If the nut still doesn't budge go to the next step.
Heat the nut with a propane torch. Concentrate the heat only on the nut. The heat will cause the nut to expand faster than the stud inside.
Place the four-way lug wrench and pipe over the nut while it is still hot. Try to loosen the nut. If the nut is still stuck it is time to call a mechanic to avoid the risk of stripping the nut.