Amsoil

AMSOIL Inc. is an American corporation based in Superior, Wisconsin that primarily formulates and packages synthetic lubricants, fuel additives, and filters. Company founder Albert J. Amatuzio developed several synthetic motor oil formulations throughout the mid-to-late 1960s. He was commercially selling synthetic motor oil by 1968. In 1972, AMSOIL 10W-40 Synthetic Motor Oil became the world's first synthetic motor oil to meet American Petroleum Institute requirements, which prompted the company to adopt "The First in Synthetics®" as its tagline. The company introduced several other synthetic lubricants that represented industry firsts throughout the 1970s and early 1980s. It distributes products in North America via a network of independent dealers paid commissions on sales.