Yeah I have the same exact quandary- I used the 820's and now won't. I also have a new car that takes your Focus filter,
right now I'm going with the ULTRA because the filter is hard to get too but I still have MC worries
Originally Posted By: KCJeep
Other than some unimpressive examples of the 820 size, I have seen nothing of concern in Motorcraft filters. Still using them on the Focus and I sleep well at night.