Review on 80250 Automatic Transmission Universal Drain by Michael Hemmig

I applied GM to my car according to the instructions on the box, everything went like clockwork. Although I deviated a step from the instructions. I replaced the nylon washer with a copper washer. It is hermetically sealed and will not leak at the recommended torque. The copper disc will not buckle under torque, will not degrade (metal vs nylon, hot, cold, vibration, hydrocarbons, pressure, etc.) and will not leak. I liked it so much I bought it for my other car.