Review on 🔧 Efficient Motivx Tools Engine Oil Funnel: Perfect for GM Vehicles by Mike Palma

So disappointed with this product. I was so excited because the oil filler neck on my 2018 Duramax L5P is in an awkward position. I had to cut off the top blue piece because it didn't fit where I wanted it. This wasn't a big problem, I screwed the transparent part on and off several times during the trimming with no problem. After cutting the top blue piece to the correct height, I reassembled the funnel and screwed it into the filler neck. I finished the oil change and the funnel worked great, when I added the oil I was so happy! And then I wanted to clean and unscrew the funnel and it wouldn't come off. It partially came off and it was possible to move it, but it didn't come off. I worked on it for an hour until I asked my father for help. After about half an hour he was able to muscle it away. The photos show he had to rip off some of the plastic to get it off. I have no idea how or why it got stuck, it screwed on very easily. It worked so well that I wish I could keep using it, but it got very frustrating when it got stuck and I can't afford to mess around with something as simple as a funnel for almost 2 hours.