Some here are using an oil filter for 3 changes and others are taking apart brand new ones. I'll never understand this place, hah.
New STP Max Performance S7317ML (Made in Vietnam) Cut Open
- Thread starter MultiLuxem
- Start date
Nice looking filter!
- Joined
- Jun 1, 2025
- Messages
- 32
If u look up on the Premium Guard's website for the Ultimate Synthetic filter, it says both.
https://www.pgfilters.com/products/filters/oil-filters/ultimate-synthetic-oil-filters/
- Joined
- Jun 1, 2025
- Messages
- 32
- Joined
- Sep 1, 2024
- Messages
- 1,161
They say silicone gasket and hnbr which is a type of nitrile. Writer error I suppose. No one is perfect.
Vietnam has allowed some US ships to port but not have a base. Some ships, not a lot. Their ideology aligns with China not the USA. But it’s the jobs at home that are most important imo.
The N in HNBR is Nitrile (Hydrogenated Nitrile Butadiene Rubber).If u look up on the Premium Guard's website for the Ultimate Synthetic filter, it says both.
https://www.pgfilters.com/products/filters/oil-filters/ultimate-synthetic-oil-filters/
A burn test should produce black smoke instead of white smoke if it really was silicone.
I'd be stunned if it's not the same filter in different livery. Good to know.
I'm starting to fear for non-PGI filter makers. Nobody seems to want to even try to run with them on performance, quality and price at the same time. It's hard enough to find a filter even close in beta ratio, never mind one as well made for same or less money.
I think you got the smoke color backwards per your photo in this previous BITOG thread.
If it's nitrile, black smoke like I said above. Since it says it's HNBR, then:
"A burn test should produce black smoke instead of white smoke …"
I read it this way:
A burn test should produce black smoke instead of white smoke if it really was silicone.
Yeah, not written perfectly clear, but the bottom line is:
Nitrile = black smoke
Silicone = white smoke
HNBR = Form of Nitrile rubber, so it should burn with black smoke, not white smoke.
I'm betting it's HNBR as PGI's chart mentions in their advertisement (not black silicone), and burns with black smoke.
Get out your lighter.
Id like to see the bypass side.
4wd
$50 site donor 2026
On the ADBV - a large number called nitrile here are AEM …
Vehicles are full of AEM these days …
Vehicles are full of AEM these days …
- Joined
- Sep 1, 2021
- Messages
- 10
The XLs has cellophane packaging over the port, I liked that extra care. These Maximum Performance models don't have that, but the gauge of the metal can on these MLs is really thick, very sturdy housing. This is the first ML I've bought. It's for my daily 2004 4.3l that I run 10-30 bean oil conventional in and change all the time. This ML doesn't have a "Made In" marking anywhere but is stamped "Product Of USA" on the can. We'll see how this goes. If all is fine, I might dump the K&N and Factory brand filters on my other vehicles.
I thought the same of new filters cut open as well, but then I realized there’s a benefit to seeing an unused filter vs used. And after that realization, I bought a filter cutter and contributed a few new filters myself. It’s all for the BITOG community. And I consider myself only a hobbyist.
Of course I’m also interested to see the 3 changes (>15k) oil filter opened as well.
