Nothing too exciting. The Polaris filter seems to be a Wix. You can get a Gold at Napa for the same or less, or a Silver for considerably less. It was run only during the break-in period, for something like 10 hours with the factory oil. The Fram was run for 50 hours with Mobil1 15-50. The damage to the Fram is from me destroying the can to get at the element. It was quite sturdy.