I recently changed the oil & filter on my 2013 HD 6.0 to Amsoil Signature Series 5w30 with the EA15K50, which is a 15,000 mile oil filter. Even though I'm still going to stick with a 5 - 7,000 mile change interval, I would think that a larger oil filter (Amsoil EA017) would filter better as it becomes used over the thousands of miles due to more filter surface area.. Like I said, even tho the EA017 is the 25,000 mile rater oil filter I'm still going to continue with a 5,000 change interval. The EA017 is basically the same oil filter with the same features of the EA15K50, just a bit taller, threads are the same obviously. What do yall think about larger oil filters?