The UPF filter is a thicker gauge material on the filter can which is required to keep it from bursting because the 3.6 blazer engine has a high pressure oil pumpI just did an oil change on the wifes Camaro 3.6. The owners manual states PF63E which is what I put on. I just bought a 2020 Blazer RS and the book says UPF63R.
What is the difference between these two filters? I'd like to consolidated and just use whichever is better.