Originally Posted By: BuickGN
To the original question...
I think it comes down to the fact that most filters never get anywhere close to their holding capacity at a normal 10K mile or less interval. The endcaps and ADBV may be a different story, making metal caps and a silicone valve mandatory. Maybe Amsoil is just capitalizing on this.
The other thing is the synthetic media has more pores for a given size. Less area is taken up by the fiber itself. If the synthetic media has twice (made up) the pores for a given size, why wouldn't it flow better, filter better, and hold more dirt?
Amsoil markets to people who aren't really into oil or filters etc . Not to start anything but it is true. The syntech type elements have been in use quite a while and are well proven,that said most users will ever keep their autos long enough or have the ideal operating conditions to ever realize a benefit from the added expense of many of the higher priced items that are purchased..