G grubac Member May 9, 2011 #1 Hey Everyone! Does anyone know if AVGAS 91/96 can be used with Lycoming's IO-390??? I was just looking over Lycoming's service bulletin 1070Q and I couldn't find their IO-390 engine in the main table. Grubac
Hey Everyone! Does anyone know if AVGAS 91/96 can be used with Lycoming's IO-390??? I was just looking over Lycoming's service bulletin 1070Q and I couldn't find their IO-390 engine in the main table. Grubac
