What’s the consensus on filters with a plastic core?

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The one Supertech 3614 I’ve cut open had a plastic core, but I believe all the other filters I’ve used over the years had metal center tubes. Is there any reason to mistrust a filter with a plastic core, or to prefer them?
 
The one Supertech 3614 I’ve cut open had a plastic core, but I believe all the other filters I’ve used over the years had metal center tubes. Is there any reason to mistrust a filter with a plastic core, or to prefer them?
The melting temperature of plastic varies significantly depending on its type. Here are some examples:

I am guessing you have an Engine that has an Aluminum Block and Aluminum Cylinder heads, that Metal sheds off heat nicely. I have done the Infrared Gun thing at the Oil Filter and the highest temp I have gotten was below 200F or so.
 
When they first came out there were some posts on here that the ecore style "windows" were too big & wouldn't support the media properly causing media to tear. They've come a long way since & so has the media technology. No real known issues outside of the early days. I like them personally & a cost effective way to deal with media support.
 
The one Supertech 3614 I’ve cut open had a plastic core, but I believe all the other filters I’ve used over the years had metal center tubes. Is there any reason to mistrust a filter with a plastic core, or to prefer them?
No. Not all “plastic” is created the same. The fuselage center barrel of the F/A-18 is “plastic” and it is tougher than most airplanes.

I’ve cut apart 10,000 mile plastic core filters that are far better made (more pleats, stronger end caps) than filters with a “metal core”.

There is no quality advantage to having a metal core, there are much more important criteria.
 
Ecore center tubes are high temperature nylon/plastic, similar to the same material Fram uses for their bypass valve. Never see any temperature related issues with these parts.
 
The Ecore center tube was a Champion Labs invention I believe.

https://www.champlabs.com/company/about-champion-laboratories/

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I recall the use of “plastic” (nylon) bushings and thrust washers in automatic transmissions back in the late 70s early eighties. They didn’t cause issues. Yes, they could distort however that was the result of a catastrophic failure caused elsewhere in the trans. Oil filters are fine.
 
There certainly were reports of media "blow-outs" in this forum in the early days from too wide of windows in the center tube, but that hasn't been seen for years. "Lessons learned" by the filter designers from field usage. I'd have no problem using current filters with an Ecore center tube.

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I recall the use of “plastic” (nylon) bushings and thrust washers in automatic transmissions back in the late 70s early eighties. They didn’t cause issues. Yes, they could distort however that was the result of a catastrophic failure caused elsewhere in the trans. Oil filters are fine.
Yep, end tanks on radiators goes back decades too …
 
The one Supertech 3614 I’ve cut open had a plastic core, but I believe all the other filters I’ve used over the years had metal center tubes. Is there any reason to mistrust a filter with a plastic core, or to prefer them?
BMW has been using filters with a plastic interior cage for decades.
 
The one Supertech 3614 I’ve cut open had a plastic core, but I believe all the other filters I’ve used over the years had metal center tubes. Is there any reason to mistrust a filter with a plastic core, or to prefer them?
doesn't bother me either way, e-core or steel tube. i just wonder if the flow rate is higher than the media's efficiency.
 
Dont cartridge filters slide into a similar nylon material and are a permanent part of the vehicle? Imo, no issues with these supertech filters. I plan on using them.
 
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