Motivx Tools Engine Oil Funnel for Most GM Vehicles THIS OIL FUNNEL THREADS ONTO THE ENGINE IN PLACE OF THE OIL FILLER CAP  fits most GM vehicles that use the 1/2 turn style oil filler cap, not for engines with the threaded style cap such as the EcoTec. Does not fit 2014+ 5.3L engines. NO MORE HOLDING YOUR FUNNEL IN PLACE WHILE POURING OIL INTO THE ENGINE  this funnel stays where it's supposed to so you have both hands free to work with. SAY GOODBYE TO SPILLS AND THAT BURNING OIL SMELL  this funnel seals to the engine with a rubber gasket and securely threads into place so it won't fall over or leak. WITH IT'S HEAVY DUTY CONSTRUCTION THIS FUNNEL WILL LAST THE LIFE OF YOUR VEHICLE  the bottom chamber is constructed with very thick, heavy duty plastic and the upper portion is highly durable yet flexible.