I've been researching various filters for my 3.5 Duratec. Unfortunately, only Green and red (K&N) have a replacement drop-in. I want an aFe pro Dry S, but it's not available. I've read that Greens may flow the best -- meaning they probably allow more dirt in. This quote from their website immediately turned me off:
Economical - A paper filter should be replaced between 4,000 to 5,000 miles or every oil change. The average cost of a paper filter is about $10 to $12. After one year of driving 15,000 miles, at least 3 paper filters are needed. This totals $30 to $35. After one to two years, a Lifetime Green Filter is already paid for. This benefit is for everyone - a daily driver, an older vehicle or someone looking for the best performance.
I don't know who recommends replacing a paper filter every 4-5k mi? I guess Green Filter for one! For the record, my OEM filter still looks brand new at 3000 mi. I'm expecting a lot of dirt these next 1-2000 miles.
Economical - A paper filter should be replaced between 4,000 to 5,000 miles or every oil change. The average cost of a paper filter is about $10 to $12. After one year of driving 15,000 miles, at least 3 paper filters are needed. This totals $30 to $35. After one to two years, a Lifetime Green Filter is already paid for. This benefit is for everyone - a daily driver, an older vehicle or someone looking for the best performance.
I don't know who recommends replacing a paper filter every 4-5k mi? I guess Green Filter for one! For the record, my OEM filter still looks brand new at 3000 mi. I'm expecting a lot of dirt these next 1-2000 miles.
