From a Facebook page. ENGINE FAILURE – A condition that occurs when all fuel tanks mysteriously become filled with low-octane air. -- Don Armstrong cavman at dtroop35cav.org 604th Trans / 52nd CAB, Pleiku, Apr / July 68 D Troop 3/5 Cav, Bearcat /Dong Tam , July 68 May 69 http://www.dtroop35cav.org