There is an "oil filter bible", much like the Oil Bible that gets passed
around
that is a very detailed study of ALL filters. The Fram was rated as one of
the least effective because of both the paper and # of folds used in them.
And yes, the Mahle spring tension for drain back resistance seems to be
the most effective.

bob

On Sun, Oct 31, 2010 at 12:33 PM, Don Hanson <dhanson928@gmail.com> wrote:

>  I see the Mahle oil filter is what everyone says to use, but I have been
> using Fram or whatever I can get easily.  I have always changed my oil more
> frequently than most.  Until I swapped motors, only if my motor sat for a
> few days would my lifters click on start up....now they seem to click every
> time for perhaps 10 seconds or so...not so good, I imagine.  Is the Mahle
> filter supposed to help with this...some kinda drain-back valve in it or
> something?
>
>