D2E1C3A1R1B3O1N1I1Z10I1N1G2
28 points
DECARBONIZING is validvalid
DECARBONIZE, to remove carbon deposits from an engine [v]
DECARBONIZE, to remove carbon from, also DECARBONISE [v]
DECARBONIZE, to remove carbon deposits from an engine [v]
DECARBONIZE, to remove carbon from, also DECARBONISE [v]