Clue: Popular oil additive
Popular oil additive is a crossword puzzle clue that we have spotted 4 times. There are related clues (shown below).
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Recent usage in crossword puzzles:
- WSJ Daily - April 12, 2021
- New York Times - Jan. 26, 1999
- New York Times - Aug. 5, 1997
- New York Times - Dec. 12, 1994