Continental Aerospace Technologies™ Submits Application to FAA for Use of UL 91/94 in Select EnginesContinental® has submitted a formal application to the FAA, that if approved, would authorize the use of unleaded aviation gasoline in over 100 popular engine models including select O-200s, IO-360s, O-470s, and IO-470s. As the industry searches for a long-term fuel solution, Continental® considers 91UL and 94UL fuel as a transitional step in a long-term strategy to reach a more sustainable aviation.