While researching oil filters for my L-Series build I came across a thread on another forum ('Bob is the oil guy') which I thought would be a good reference for members here. The thread, written by a dedicated guy known as 'Big-O-Dave', was made to provide a comparison of oil filters threaded for 3/4"x16. I've tried contacting him via PM, but it seems he is no longer active on the forum. He did give permission to others to repost his findings, so he should be fine with it here (and if not, you can always contact me to have it removed Dave!). Most of the pictures were posted on another forum al