Motorcraft FL-1hp pressure drop

[zrayr]

for what it's worth, I received this email from Mobil Oil in response to a query:

" From: Mobilproducts <mobilproducts@ourdataworks.com>

Mobil1 oil filters have nominal 10 micron filtering ability.

-MJ... "

Z.

[LRRCobradreamer]

10 micron nominal is the old way to size filters (1960s). Absolute micron is better (1970), but the best way is by a Beta rating (late 70s). I would guess a 10 micron nominal filter is about a 20 to 25 absolute micron filter, but they can vary a lot.

Note that red corpules in your blood is 8 micron in size. To affect additives in an oil, filters would have to be well below 1 micron, about .1 micron or smaller would be my estimate.

Lee