The touting of zinc-d as a special ingredient in engine oil additives is a little like the Shell ads which touted Platformate. (Most gasoline has similar additives but under different names.) Zinc-d is an additive in most, if not all, major oil brands.
Madison County is a county located in the Lead Belt region of the U.S. state of Missouri.As of the 2010 census, the population was 12,226. Its county seat and largest city is Fredericktown. The county was officially organized on December 14, 1818, and was named after President James Madison.adison County is a county located in the Lead Belt region of the U.S. state of Missouri. As of the 2010 census, the population was 12,226.
Fredericktown is a city in and the county seat of Madison County, Missouri, United States, in the northeastern foothills of the Ozark Mountains. The population was 3,928 at the 2000 census. The city is surrounded on three sides (east, west, and south) by the easternmost parcel of the Mark Twain National Forest. The earliest European settlement in the area near what is now Fredericktown was Mine La Motte, a small community about six miles (10 km) to the north. Mine La Motte was first settled by Europeans to mine a large vein of galena lead ore distributed in dolomite that reached the surface there.