To those of you familiar with the Ford Focus, a 'special' oil filter was required for the Zetec 2.0L. Though I never really got to the bottom of why, the Motorcraft filter that used to be spec'ed was FL-2005. This filter had a second bypass valve (at least, that's what I believe it is) located in it. Supposedly, this was needed to make sure there was plenty of oil available at start up. Most of the aftermarket oil filter brands also designed their filters this way; though several did not, which did somewhat limit oil filter choices for this engine/my car.
Anyhow, to get to my point....Ford no longer spec's the FL-2005 filter for the Focus. In fact, as far as I've been able to determine, they stopped making that filter all together! They are now spec'ing the Motorcraft FL-400S, which does NOT have the second ADBV. To me, there are only a few reasons as to why this happened. First, since the Zetec isn't produced any longer, Ford decided to save money on what had to be a more expensive filter to build, and figured a similar, though perhaps less-than-ideal, filter would work. Or, perhaps, long term studies showed that the second ADBV (or whatever it is) wasn't really needed to begin with. Regardless of my conspiracy theories, I have found that the Purolator PureOne filter for this engine does in fact still have the second ADBV. With all the other good things being said about the PureOne, I think I'm going to make the switch. I have always used the Motorcrafts, but it does somewhat concern me that for some reason, a different type of oil filter is now being spec'ed.
The one big drawback that the 2nd ADBV design has is that it makes it impossible to pre-fill the filter with oil when doing an oil change. Therefore, the engine will always have the small bit of time at start-up after the oil change when there is no oil circulating. Heck, maybe that was the reason Ford decided to do away with the 2nd ADBV FL-2005 filter?! Maybe it would be better to stick with the FL-400S? Who knows? The only thing I do know is that out of all the cars I've personally owned, I've never had one that's had its' oil filter design change several years later.
Anyhow, to get to my point....Ford no longer spec's the FL-2005 filter for the Focus. In fact, as far as I've been able to determine, they stopped making that filter all together! They are now spec'ing the Motorcraft FL-400S, which does NOT have the second ADBV. To me, there are only a few reasons as to why this happened. First, since the Zetec isn't produced any longer, Ford decided to save money on what had to be a more expensive filter to build, and figured a similar, though perhaps less-than-ideal, filter would work. Or, perhaps, long term studies showed that the second ADBV (or whatever it is) wasn't really needed to begin with. Regardless of my conspiracy theories, I have found that the Purolator PureOne filter for this engine does in fact still have the second ADBV. With all the other good things being said about the PureOne, I think I'm going to make the switch. I have always used the Motorcrafts, but it does somewhat concern me that for some reason, a different type of oil filter is now being spec'ed.
The one big drawback that the 2nd ADBV design has is that it makes it impossible to pre-fill the filter with oil when doing an oil change. Therefore, the engine will always have the small bit of time at start-up after the oil change when there is no oil circulating. Heck, maybe that was the reason Ford decided to do away with the 2nd ADBV FL-2005 filter?! Maybe it would be better to stick with the FL-400S? Who knows? The only thing I do know is that out of all the cars I've personally owned, I've never had one that's had its' oil filter design change several years later.
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