Originally Posted By: maverickfhs
Originally Posted By: goodtimes
I did a quick eyeball measure of filter thread depths from can edge.
Best, Purolator, same base as this one-
https://www.amazon.com/Purolator-PL14610-PurolatorONE-Oil-Filter/dp/B000E8V9RG
second, Champ labs two different kinds. Probably close to the Purolator
third, Wix made ST and Mann Germany
fourth, Baldwin, which the base is close to the same plane as the edge.
I have some others in the garage, Frams I didn't look at. Fram is concave but the thread then sticks up from the low point.
It takes time to use a depth micrometer and get an actual measurement, and this was just eyeball using a square shank screwdriver as a straight edge. No time for that right now. But I see no evidence the Purolator would be out too high. My example was PBL 14477. I'd like to see some actual proof of things claimed if they are to be believed. I don't see pictures of old Purolators that were concave and new that are convex. The new Purolator I linked on Amazon looks just like the ones I always see for many years with the round small holes.
Does walmart still carries ST filters? Since I have seen some at my local Walmart. Will check next time!
Walmart sells their Super Tech filters that are now made by Wix. A lot of people seem to like them.
I searched for the PBL14610 on Amazon and got a picture of the "concave" baseplate. So now I see what they are talking about.
https://www.amazon.com/Purolator-PBL1461...ywords=PbL14610
The one I have is convex though, and like I said it had about the most distance to the thread of any filter I looked at.