One of my vehicles has a hard to reach oil filter which causes me to have to line up the filter with the threads by feel instead of by looking. Most oil filters have the center threaded hole punched into the filter and threaded. Fram Ultras have the base plate showing the sharp edge/end of the threaded hole. In most applications this doesn't matter, but in practice it means that the installer needs to keep the filter body exactly perpendicular the the threaded base in order to start the threads correctly and spin the filter on.
Every other filter works the other way around, the the curved center area of the base plate acts as a kind of alignment piloting feature which makes it much easier to spin the filter on correctly even when you can't see it well with your eyes.
I think other Frams work the same way, but I only have Ultras on hand to confirm. Fram on the left, M1 on the right in photo below.
Does this casue problems for anyone else?
Every other filter works the other way around, the the curved center area of the base plate acts as a kind of alignment piloting feature which makes it much easier to spin the filter on correctly even when you can't see it well with your eyes.
I think other Frams work the same way, but I only have Ultras on hand to confirm. Fram on the left, M1 on the right in photo below.
Does this casue problems for anyone else?