Chiefs DT Kevin ___, 6 letters
Crankcase sediment, 6 letters
Drain blocker, 6 letters
Engine gunk, 6 letters
Engine-additive target, 6 letters
Gunk, 6 letters
Icky stuff, 6 letters
Mire, 6 letters
Muddy deposit, 6 letters
Ooze, 6 letters
Oozy sediment, 6 letters
Scum, 6 letters
STP target, 6 letters
Term for nasty oil-pan residue, 6 letters
Thick, messy substance, 6 letters
Any thick messy substance, 6 letters
The precipitate produced by sewage treatment, 6 letters
Toxic assets that pay for engine buildup?, 11 letters
Yucky mucks, 7 letters
Muddy, 6 letters
Oozing mud, 6 letters