Mileage on my 6.0

[fordoor]

The Crankcase Ventilation mod is basically eliminating the oil vapors from the crankcase being recirculated back into the intake. Here is a link for one such kitBD Power - Product: Crank Case Vent Filters This is just one kit and one way to do it. Others do homemade version. Maybe they'll jump in w/ suggestion. Bob