My local parts store only carries Fram filters. I went out to the garage to see if I had any more to try and get a part # but, no more. I've never used another type of filter. If the concensus here is to use OEM brands then I will switch. I don't want to harm my motor. Off the topic a little, is there a thermostat for the oil cooler? And if so, does it need to be changed periodically? I'm only curious. I am not having any problems with it. I just want to know because when we do oil coolers at the track there are usually thermostats so the oil doesn't get too cold. IT DOES HAPPEN! Again, just curious.