1. The $5 filter I believe has a lot more filtration media and maybe a finer pore size.
2. I am using an oversized on my F150. It specs a Motorcraft FL1A, but I am using the 1.5-inch-longer FL299 version (for older F700 trucks). In this case, one filter company told me the smaller flows 4 gallons per minute, whereas the longer flows 7 gpm. Be sure the thread sizes and gasket diameter are the same. Also check whether there is an antidrainback valve, bypass valve, etx. Only site I know that gives gasket diameter is Wix.
3) MOVED TO GENERAL FORUM
4) Or put a Fram in a Purolator box and you don't find out until you get home. I just bought a Fleetguard from a truck dealer and it came totally encased in plastic wrap. I heard that in the olden days of no hood latches, a punk (old type punk, not punk rocker) stealing your battery would get the added kick of dumping a handfull of sand or dirt down the oil filler neck.
Back to oil filters, there was a guy posted about testing antidrainback valves in the store. He would pull the filter out of the box and blow into the center hole to see if air leaked out the valve. Hmmmmm, I suppose you could get a filter full of spit, with maybe some leftover pretzel pieces.
2. I am using an oversized on my F150. It specs a Motorcraft FL1A, but I am using the 1.5-inch-longer FL299 version (for older F700 trucks). In this case, one filter company told me the smaller flows 4 gallons per minute, whereas the longer flows 7 gpm. Be sure the thread sizes and gasket diameter are the same. Also check whether there is an antidrainback valve, bypass valve, etx. Only site I know that gives gasket diameter is Wix.
3) MOVED TO GENERAL FORUM
4) Or put a Fram in a Purolator box and you don't find out until you get home. I just bought a Fleetguard from a truck dealer and it came totally encased in plastic wrap. I heard that in the olden days of no hood latches, a punk (old type punk, not punk rocker) stealing your battery would get the added kick of dumping a handfull of sand or dirt down the oil filler neck.
Back to oil filters, there was a guy posted about testing antidrainback valves in the store. He would pull the filter out of the box and blow into the center hole to see if air leaked out the valve. Hmmmmm, I suppose you could get a filter full of spit, with maybe some leftover pretzel pieces.
