Friction reducer - crossword puzzle clue Friction reducer is a crossword puzzle clue that we have spotted 17 times. There are related clues (shown below). Referring crossword puzzle answers Sort A-Z OIL LUBE TRUCE BALLBEARING Likely related crossword puzzle clues Sort A-Z Lubricate Fuel Bribe Energy source Cooking fat Frying medium Black gold Break in the action Lubricant Pine product