Originally Posted By: zvm77us
Is the problem with just "purolorator" branded filters or with other filters that puro manafactures for other companies (ie: MANN (now partenered with puro, or Mopar filters mfr. by Puro)?
Most of the above, including Bosch, Mann, Mopar, and Motorcraft, rebox the same Purolator filters.
Manns with part numbers starting with ML are reboxed Classics. The real German Mann oil filters' part numbers start with W (spin-on) or HU (cartridge); the latter two do not tear.
Bosch Workshop (5-digit part number ending in WS) is a reboxed Classic. The Bosch four-digit filters (3xxx) are reboxed P1's.
The Motorcraft is very similar, but not identical, to P1. Some of these have torn.
Note that the Bosch D+ does NOT tear. In addition, the Purolator Synthetic doesn't tear. Bosch Long Life (L3xxx) is a reboxed Purolator Synthetic and doesn't tear.