OK, I expect to get some flack, but for what it is worth, here goes.
I recently bought from Rockauto, a selection of filters that will be used for short OCI's and on lawn mowers.
The size I required were all to be the equivalant of a Fram PH 3614.
These are all 'lower priced' not 'high end' filters, but all appear OK to me and are at least as good as I am likely to find locally around here.
None have silicone ADV's, all have coil spring bypass valves.
I DID NOT TAKE PICTURES
This is a non distructive review (I do not want to cut my filters open) My review is purely subjective, I peer down through the outlet hole with the aid of a penlight, I say what I see.
Weights are taken on a kitchen scale, good + - 5 grams.
Prime Guard POF241, $1.32, Made in China, weight: 225g, core is spiral wound perforated metal, pleats look close and even.
AC Delco PF13, $1.69, Made in USA, weight 235g, plastic cage core, filter pleats very un-even, filter element is shorter than others, strange double layer base plate of thin steel.
Filter body larger in diamiter than the others.
FVP R1348, $1.32, Made in China, weight 235g, spiral wound perforated core, pleats appear even.
This filter 'appeared' marginally better than most of the others.
Premium Guard PG241, $1.32, Made in Korea, 230g, spiral wound perforated core, pleats appear even.
Proto PO241, $1.32, Made in China, 225g, spiral wound perforated core, pleats appear a little un-even.
WIX 51348 (Car Quest), $$2.23, Made in USA, 220g, perforated metal core with vertical seam,
Pleats appear even, filter element very short, by-pass valve appears lopsided.
Visually, the filter with the worst in 'fit and finish'
All the Asian filters were packaged with an additional plastic cover on the base plate.
I recently bought from Rockauto, a selection of filters that will be used for short OCI's and on lawn mowers.
The size I required were all to be the equivalant of a Fram PH 3614.
These are all 'lower priced' not 'high end' filters, but all appear OK to me and are at least as good as I am likely to find locally around here.
None have silicone ADV's, all have coil spring bypass valves.
I DID NOT TAKE PICTURES
This is a non distructive review (I do not want to cut my filters open) My review is purely subjective, I peer down through the outlet hole with the aid of a penlight, I say what I see.
Weights are taken on a kitchen scale, good + - 5 grams.
Prime Guard POF241, $1.32, Made in China, weight: 225g, core is spiral wound perforated metal, pleats look close and even.
AC Delco PF13, $1.69, Made in USA, weight 235g, plastic cage core, filter pleats very un-even, filter element is shorter than others, strange double layer base plate of thin steel.
Filter body larger in diamiter than the others.
FVP R1348, $1.32, Made in China, weight 235g, spiral wound perforated core, pleats appear even.
This filter 'appeared' marginally better than most of the others.
Premium Guard PG241, $1.32, Made in Korea, 230g, spiral wound perforated core, pleats appear even.
Proto PO241, $1.32, Made in China, 225g, spiral wound perforated core, pleats appear a little un-even.
WIX 51348 (Car Quest), $$2.23, Made in USA, 220g, perforated metal core with vertical seam,
Pleats appear even, filter element very short, by-pass valve appears lopsided.
Visually, the filter with the worst in 'fit and finish'
All the Asian filters were packaged with an additional plastic cover on the base plate.