I believe the Mobil filter was the best filter going quite a few years ago other than for the flow-back. I've been using these since I could no longer get the factory ones and have had no issues. The flow-back doesn't matter to me since I had Marc H install a pre-lube system on my car... turn the key on and wait about 10 seconds (much quicker if it hasn't been sitting for days) to pressurize and start her up, no rattles and purrs like a kitten from the first second running... love it!!
Is there any filters nowadays that out performs the Mobil filter other than the back flow on it?
Has anyone tried Amsoil filters?