I went ahead and installed a FRAM Tough Gard 4967 from wal-mart. It threaded on fine, but I noticed the filter can it's self is a little smaller in diameter then the original filter. I'm a little worried about the rubber oil seal, only about half of the seal ring touches the base of the filter housing. I went ahead and filled and started it, it did'nt leak for now. George, are the filters you use the same way?