The filter is pretty big, so you'll need to make sure there's enough room around it for removal and replacement. With the TopDog V oil bypass filtration system, you can double your oil change interval. The bypass filter should be changed every other oil change. If you changed your oil every 3,000 miles, you can now go 6,000 miles between oil changes. The bypass filter should be changed every 12,000 miles. The bypass filter is an Amsoil EaBp-90, and can be ordered from anymsoil dealer.