Answer: dipstick

AnswerCrossword Clue
DIPSTICKBody shop instrument
DIPSTICKOil-measuring rod
DIPSTICKOil-checking item
DIPSTICKGas-station gadget
DIPSTICKCrankcase item
DIPSTICKIt's cleaned at gas stations
DIPSTICKTesting device
DIPSTICKCrankcase rod
dipstickA graduated rod for measuring the depth of a liquid, esp. oil in a vehicle's engine
dipstickA stupid or inept person