I've been posting a good bit about these double ADBV Liberty diesel filters as I find them very interesting. Well I recently intended to put this one to use, but dropped it like a dummy and put a bad dent in it. It would have probably been okay but I decided to open it up instead.
The STP S8316 crosses to the Fram PH/TG8316, the Puro L25230 and Napa Gold (Wix) 1315. All of these filters feature double ADBV's for maximum retention of the oil in the top of the engine. The Fram is shorter, about 4" like the FL-400S (which these filters also cross to) but the Wix, Puro and STP pictured here are all closer to 5" long. The Wix/Napa feature an apparent silicone traditional ADBV along with the second valve, the Fram and Puro are black nitrile (except the Tough Guard version which is silicone).
The STP may be the best bang for the buck of any of them as it is regularly priced at $4.49 at Auto Zone. It is made by Champ Labs but is not an e-core application. Anyway, onto the pics.
The box, just noticed I shot the Spanish side, hah!
What you'll find inside:
The base plate, note the apparent silicone ADBV, also a good quantity of hole space for flow, you can also see the second ADBV down the center tube.
An outside length shot:
What's inside when you pop the lid. Here's where you start to learn something you weren't expecting. The "silicone" ADBV turned out to be rather rigid and disappointing in flexibility. Nothing like the "S" series Motorcrafts I recently opened that were very soft like fresh bubble gum. I've felt softer and more flexible nitrile ADBV's. That may have no effect on how well it works but it was a surprise and a bit of a disappointment.
Pretty pleats at first. Quite a good quantity too, I counted 49 of them. The media did not "feel" as strong to me as say a Fram orange can would, but there was a good bit of it.
The seam side. Not quite as impressive but still just fine, everything was sealed well and resisted me trying to pull it apart quite well.
Now the ugly. Lots of glue glopping out of the metal endcap. It probably has nothing to do with actual function but it isn't impressive either.
Shot of the dome end bypass.
The leaf spring. I was surprised to find a 4 legged leaf spring instead of two. I like it, it appeared a little more stable to me than double legged springs.
Everything all laid out:
Media length measurement. The STP has about an extra inch on the FL-400S which equates to about 25% more media length. However the FL-400S has 16% more pleats. I didn't physically measure the media but it appears reasonable that the STP has a slight edge in media area. The STP is advertised at 96% efficiency, the Motorcrafts are generally thought to be around 94% efficiency.
So there we have it. Would I run this filter? Yes I would, and will, but I also learned a good bit, this is still a lot of filter for $4.49 but it also showed it's price point a bit when opened.
Hope you enjoyed it, I did!
The STP S8316 crosses to the Fram PH/TG8316, the Puro L25230 and Napa Gold (Wix) 1315. All of these filters feature double ADBV's for maximum retention of the oil in the top of the engine. The Fram is shorter, about 4" like the FL-400S (which these filters also cross to) but the Wix, Puro and STP pictured here are all closer to 5" long. The Wix/Napa feature an apparent silicone traditional ADBV along with the second valve, the Fram and Puro are black nitrile (except the Tough Guard version which is silicone).
The STP may be the best bang for the buck of any of them as it is regularly priced at $4.49 at Auto Zone. It is made by Champ Labs but is not an e-core application. Anyway, onto the pics.
The box, just noticed I shot the Spanish side, hah!
What you'll find inside:
The base plate, note the apparent silicone ADBV, also a good quantity of hole space for flow, you can also see the second ADBV down the center tube.
An outside length shot:
What's inside when you pop the lid. Here's where you start to learn something you weren't expecting. The "silicone" ADBV turned out to be rather rigid and disappointing in flexibility. Nothing like the "S" series Motorcrafts I recently opened that were very soft like fresh bubble gum. I've felt softer and more flexible nitrile ADBV's. That may have no effect on how well it works but it was a surprise and a bit of a disappointment.
Pretty pleats at first. Quite a good quantity too, I counted 49 of them. The media did not "feel" as strong to me as say a Fram orange can would, but there was a good bit of it.
The seam side. Not quite as impressive but still just fine, everything was sealed well and resisted me trying to pull it apart quite well.
Now the ugly. Lots of glue glopping out of the metal endcap. It probably has nothing to do with actual function but it isn't impressive either.
Shot of the dome end bypass.
The leaf spring. I was surprised to find a 4 legged leaf spring instead of two. I like it, it appeared a little more stable to me than double legged springs.
Everything all laid out:
Media length measurement. The STP has about an extra inch on the FL-400S which equates to about 25% more media length. However the FL-400S has 16% more pleats. I didn't physically measure the media but it appears reasonable that the STP has a slight edge in media area. The STP is advertised at 96% efficiency, the Motorcrafts are generally thought to be around 94% efficiency.
So there we have it. Would I run this filter? Yes I would, and will, but I also learned a good bit, this is still a lot of filter for $4.49 but it also showed it's price point a bit when opened.
Hope you enjoyed it, I did!
