Crossword clues for the word: AVGAS The word AVGAS has appeared as an answer to at least 9 crossword clues on different crossword puzzles. Crossword clues for AVGAS Showing 1 to 9 of 9 results Clue(s) Aircraft fuel Aircraft fuel portmanteau Cessna fuel Fuel for a Piper Cub Fuel for piston-engine aircraft Fuel for piston-engine airplanes Fuel for planes Fuel for some prop planes Prop plane fuel