I use Motorcraft Synthetic Blend in all my Fords along with Mototcraft Filters. I even ran it in my Ex-Jeep I'll even put it in my dad's Terota if he brings it by! When they are on sale I pick up a bunch. I have a nice selection of 820Ss and FL1As in my garage! Like Shotgunz says the 5qt jug with a 1 qt bottle from wallywordls is the way to go!