Abstract: A tool for use by an automobile mechanic when changing an oil filter, and which prevents the mechanic from being burned by hot oil running out of the engine block; the tool consisting of an adapter to which a disposable plastic bag is attachable, the adapter and bag being fitted around a lower portion of the engine block and the downwardly depending oil filter which extends into the bag, thus permitting the mechanic to place a wrench around the outer side of the bag in order to grasp the oil filter, for unscrewing the same from the engine block, so that the removed oil filter then drops into the bag together with the dripping oil, so that the oil does not run out on the mechanic's arms.