|Pictured at the service counter, Rick and Mirium Back now sell AMSOIL XL products, small engine and 100% Synthetic AMSOIL and EAO filters. It all started with a customer needing a tuneup "TODAY!. Being very busy, Rick decided to try the PI for the injectors as a way to appease the customer. It worked! Cleaned the fuel system and the injectors. Saved the customer several hundred dollars and made him a believer in AMSOIL products.Rick was convinced as you will be too.