You only need to do this every few years, if at all. "It depends on the manufacturer," Halderman says. "Some use coatings to avoid buildup." In general, say no unless it's part of the recommended maintenance. Nitrogen-Filled Tires Atmospheric air is already 78 percent nitrogen, and ...
9. Nitrogen in your tires No matter what your tires are filled with, nitrogen or oxygen, the four wheels pushing your vehicle along will inevitably deflate. Tires can lose air due to a hole in the tread, a poor seal or just general vehicle wear and tear. But many dealers will encourage...