Frequently Asked Questions Purchasing AMSOIL Products How can I purchase AMSOIL products? Answer: Order through the AMSOIL Online Store, call 1-800-777-7094 or find a local Dealer. Become a Preferred Customer and purchase AMSOIL products at wholesale cost, which is approximately 25 percent less than retail price. How can I locate an AMSOIL Dealer? Answer: Use the online AMSOIL Dealer Locator. How long have AMSOIL lubricants been on the market? Answer: AMSOIL products have been available since 1972, when AMSOIL 10W-40 Synthetic Motor Oil became the first synthetic motor oil to meet American Petroleum Institute (API) service requirements. Today, AMSOIL manufactures synthetic lubricants for ...