I have been running a K&N panel filter in my '97 Subaru for years, probably at least 11. I think I have cleaned twice in that time, following the directions to the best of my ability. I have never had a MAF issue. I never thought twice about putting it in, but I gather they don't filter as well as most paper filters. Should I stop using it? What are good choices to replace it? Is the Fram Washable filter any good? It appeals to me because my car hasn't been driven a lot for the last 5 years or so and it would be easy to clean the air filter when the oil and filter get changed once a year. Thanks, Doug P.S. Relative to another thread, I was looking at Frams today at Walmart. The Toughguard (oiled paper) was made in Mexico, the Extraguard was made in Canada.