pretty sure motorcraft filter have a antidrainback valve so that oil remains in the filter so that it is provided to the motor quicker after start up

for the price the motorcraft filter is one of the best as is basically a Purolator filter


- 95 Mystique LS - Zetec/5spd - 99 Contour SeVT Sport - Duratec/5spd Official NE-CEG Contour/Mustang Family