【Specification】This Oil Funnel is for GM, and can be used on multiple applications. Including: AM General, Buick, Cadillac, Chevrolet, Chrysler, Dodge, GMC and Pontiac. 【No More Leak】Funnel can be directly connected to oil filler necks, and seal to the engine with a rubber gasket, and securely threaded into oil filler necks, eliminating unsafe oil spills.