Just got off the phone with Champion Labs. I to am trying to decide what filter to use. I had narrowed it down to three. Mobil 1, K&N, or Bosch premium. Mobil 1 filters down to 10 microns but costs $11.99 at Autozone. Bosch Premium filters to 15 microns and costs $5.49 at Autozone. K&N filters to 18 to 20 microns and costs $9.95 at advance Auto. I have decided to go with the Bosch Premium. According to Champion all 3 of these filters are great filters. But $6.50 less than the Mobil 1 I can live with the 15 micron of the Bosch vs the 10 micron of the Mobil 1. Champion labs told me that the K&N was not required as it used more for racing due to the excellent flow rate.
Checkout the "oil filter study" by Mike Thompson on this forum. good reading.
[ December 09, 2002, 07:36 PM: Message edited by: westex39 ]