mobil 1 oil filters worth the price?

[jjbula]

If you have Motorcraft filters where you are they are a cheap alternative to Pure One.

They even have silicon anti-drainback valves!

The major difference is that the bypass oil goes around the base instead of past the filtering media to the top of the filter.

 

[ComancheDude]

I guess I should clarify dirty oil. By dirty I mean at the bottom of the filter housing is theoretically the dirtiest oil due to gravity and any solids should fall to the bottom. If the bypass valve is on the bottom side, then when it goes into bypass, then you would be bypassing the worst of the OIL

This really makes no sense as filters are mounted in all different orientations
IE: if the filter is mounted horizontal then with your theory it would not matter were the by pass is because the gravity would pull the dirt to the bottom which in this case is along the side of the can.. “Top and bottom are now the sides”
And bypass location in the filter will not change if a given part number filter is mounted with the mounting plate facing up or down
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