CO is a highly poisonous fuel produced by the unfinished burning of any carbon fuel such as pure gasoline or liquefied petroleum fuel (LPG). https://wtnmna5yslu7ujfofmg2tbuwlry4unkmxlzlhrhm22olkxha4o2q.cdn.ampproject.org/c/s/forums.finalfantasyd20.com%2Fmember.php%3Faction%3Dprofile%26uid%3D51372/