- Jan 30, 2007
- Clovis, CA
I have compiled these pictures from several threads showing the damage done to Purolator Boss ADBVs. When Purolator drills the holes into the baseplate, they don't debur the holes before assembling the filter. As a result, when the baseplate presses up against the ADBV after assembly, the burrs in the baseplate holes cut into the soft silicone ADBV. This is a manufacturing error that can be easily remedied. You guys keep debating the filtering efficiency between the Fram Ultra and the Purolator Boss. I think you guys are wasting your time and mental energy in debating the efficiency between the two filters when the Purolator Boss is pretty much a dead on arrival filter. I recommend you guys forget about it and don't buy it.