wooferocau
Thread starter
Now that makes complete sense.....the sealing gasket.The OG Ultra leaf spring stamping was very smooth and flat, even though there was a fiber sealing gasket between it and the end cap. Plus the fit of the leaf spring was tight on the ID of the fiber gasket built into the end cap (another sealing area), so it essentially had a double sealing mechanism. Whoever is in charge of making leaf springs now for Fram and Champion Labs built filters is missing the boat and making junk.
Here's a photo of an OG Ultra leaf spring and the fiber sealing gasket built into the end cap. The sealing impression from the leaf spring can be seen in the fiber gasket. This is how a leaf spring should be sealed if you're going for maximum efficiency, which the OG Ultra was going for. Too bad it's no longer made to this standard anymore.
View attachment 317668 View attachment 317669
The metal to metal config in the Amsoil filter makes no sense whatsoever!!!