Originally Posted by kschachn
Originally Posted by OZHSV
Originally Posted by ZeeOSix
I don't care for it myself because it can scratch/gouge the mount.
That was my concern, thanks for the explanation. I'm not sure I like that design at all.
All experience is local of course, but I can tell you that I've used either Toyota OEM or Denso filters for nearly the entire life of my old Sienna and ECHO, and that has not been a problem. There's not a bunch of wear marks on the mount and none have ever leaked, ever.
Both of those are "torque stop" design or whatever Denso calls it. IIRC the A01 filters I've always used on the Accord are a similar design.
Originally Posted by DuckRyder
Total non-issue.
It's not total non-sense. I used Toyota Denso filters on my Tacoma for awhile when it was new, and didn't like the fact the filters bottomed out and left marks in the aluminum filter mount when the filter was torqued to specs. I would inspect the edge of the filter can before installing and smooth off any rough spots to help reduce marring. The marks are there in the aluminum seat, but are relatively slight. Still don't like the fact the edge of the can is contacting the seat.
If you always use the OEM filter it won't ever leak because the gouge area is always outside the P-ring contact area. But if you use an aftermarket filter down the road it's possible the base gasket might be over the gouge area.