Last update:
Five oil changes and 15,000km later the valve is still as good as new. The dirt that accumulates on the outside does not affect the operation in any way. Thanks to the nipple I can drain the oil to almost any container and anywhere without spilling. I wouldn't recommend it for those that change the oil less than 2-3 times a season and plan to own the bike less than 3-4 years - it's not worth the expense and trouble to install. Fram will most probably offer a much better cost/benefit ratio.