Looks promising but there's at least two Ram 1500 owner complained on AMZN it didn't work. Any idea what their problems were? They claim it easily slips off the filter and vice versa the filter slips out after its removal- both scenarios making bigger messes than other methods.
Those reviews were the reason we got ahold of a RAM to try it ourselves. There are also a few reviews saying it worked great so we wanted to see what the disconnect was.
What we found is that there is a column of oil that doesn't come out until the filter is unscrewed all the way and clears the threads. So it appears like it's working great until it is all the way unscrewed and drops. Then 3-4 oz of oil drops out and splashes.
If you are using the 4" Oil Udder XL it works great, it catches everything. On the smaller 3" Oil Udder it splashes off the filter and the cup isn't big enough to catch the mess. That's why we talk about punching the filter with a screwdriver if you have the smaller one which allows that column of oil to drain out before you remove the filter eliminating the problem.
Regarding the magnet. It's a 2lb pull force Neodymium magnet and we didn't have that issue when we tried it but my suspicion is that because it's ****ed at such an angle to fit under the filter under the right circumstances it could cause it to disconnect. But we designed it to be able to hold itself while being completely full of oil with a 100% margin for error. Made a quick video clip that shows how the magnet gets slightly pryed away from the filter when it's ****ed to the side.