Originally Posted by y2k600f4
I agree, however I am using a fram PH5 that from a few sources it is a 1 qt filter. Doing a rough volume calculation (not taking into acount internals) it is ~ 1 qt.
The volume of the cylinder is 1 qt. Until you stuff it with over 3 ft of pleated paper, a cardboard bypass valve, a threaded cap, plastic pieces to hold the paper together, and a bypass screen, who knows what it is?
Did you ever try filling the filter before putting it on? It takes less than half a quart even if you let it sit for a few hours and soak up.
WAY too many variables to assume that it would be accurate.
Not busting chops, its just that peace of mind in this case is $2-20 to get the right part and be done with it.