I've been talking to these guys since Dec 07. They are a start up company. The owner has been using the filters way past the 10,000 miles max they recommend. They were telling me that they would go 5,000 miles on a regular filter, do a UOA, then run the same oil with the greenfilter. The next UOA would show much cleaner oil. This was done using Wally World dino oil.
None of this is documented, just a few telephone calls between myself and them. I have no financial or personal interest in this company.
It appears to be a simpler solution to the bypass filtration solutions I've ready about here at BITOG.
I have purchased 2 filters for my 2005 Prius. There are 5,000 miles on my oil now (70,000 on the car). I'll install tomorrow and test the Amsoil 0W30 SSO in June.
I'll get 30k to 35k miles in about 3 years. Can Amsoil SSO last 3 years?