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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Needed a fill-up 6 letters:

RANLOW: Needed a fill-up
LOW: Needing a fill-up
EMPTY: Needing a fill-up
ONE: Needing a fill-up
GASGUZZLER: It needs frequent fill-ups
EMPTY: Needing a complete fill-up