Fumoto cons:
1. Cost
Fumoto pros:
1. Removes the need for a tool to drain oil.
2. Removes the on and off of the drain plug many times over its lifespan increasing reliability.
3. Enables those with OCD the ability to remove exactly 7 ounces of oil if an overfill happens.
Fumoto lies idiots perpetuate:
1. It will come lose. How does that work exactly?
2. The valve bail will turn and the oil will drain out. How does that work exactly?
3. You will hit something and knock it off. If you hit something hard enough to remove something attached to your motor, you are doing it wrong.
4. The valve threads into the pan so you can't remove the last .0000234 ounces of oil. While true, there is no engine maker that requires a flush and fill and every drain and fill leaves oil behind.
Ultimately a Fumoto is a personal choice and one can't quantify worth in life. I went shopping with a buddy this weekend and he showed me his $500 pocket knife. Is it worth it? I have $200 tweezers in my garage. Are they worth it? Who knows. I've been running my Fumoto for 307,000 miles and I spun one on my wife's Ascent on oil change #1. They are worth it to me as it makes the oil change a bit quicker.