Hi Kilgore and Stang,
Regarding drain back valves, if the OE filter has a drainback valve then the Fram filter will have one also. The same goes for the relief valve. Those are both very important features.
When it comes to the “conventional wisdom” on car forums, you need to ask yourself one thing: Who’s doing the talking? Do they have an engineering background, are they spouting off information on something they’ve personally experienced, or are they just repeating information from out-of-date studies?
Gary
Regarding drain back valves, if the OE filter has a drainback valve then the Fram filter will have one also. The same goes for the relief valve. Those are both very important features.
When it comes to the “conventional wisdom” on car forums, you need to ask yourself one thing: Who’s doing the talking? Do they have an engineering background, are they spouting off information on something they’ve personally experienced, or are they just repeating information from out-of-date studies?
Gary