Oil filter

tan's2002kjlimited · **Posted:** Sat Jul 18, 2009 8:15 pm

I've searched for the thread to no avail. Someone once posted there
was a larger capacity Ford oil filter that can be used.
Anyone remember a good brand and part #? please.

jeepkj02 · **Posted:** Sat Jul 18, 2009 9:53 pm

I believe you can't use that filter because it doesn't have the anti-drain back valve that is required the the 3.7L

JeepinJarhead03 · **Posted:** Sat Jul 18, 2009 10:19 pm

i'm leaning towards x2 on that

amsoil (and a few other companies im sure) do have bypass filter kits and what not for remote mounting of oil filters

dkcase · **Posted:** Sun Jul 19, 2009 10:57 am

Here are the links I think you refer to.
What I said there is still valid. The Ford filter FL-400S isn't larger, and I haven't tried to fit an FL-1A. I've used plenty of FL-400S on the Jeep and plenty FL-1A on my Fords. Right now I'm using Wix.

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?p=407172#407172

http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?p=408742#408742[/url]

hooperswish · **Posted:** Sun Jul 19, 2009 11:49 pm

anti drainback is not needed since the filter is not upside down, as in a lot of japanese vehicles.
Therefore, the oil can't drain back. It just sits in the filter...

tjkoen01 · **Posted:** Mon Jul 20, 2009 8:36 am

I have been using the Wix 51515 filter on the 3.7L for at least 30k now (total of 122k on the ticker) with no issues, knock on wood. (this is the same filter that goes on a small block ford....I ran these on my Grand Cherokee with the I-6 too!)

Don't know that the anti drainback, whether it is there or not, would have any effect since as was previously mentioned, the filter is upside down. I thought the whole idea of the anti drainback was to keep the oil in the filter when the engine is off. I'd think gravity would have that under control unless you are on your roof!

dkcase · **Posted:** Tue Jul 21, 2009 10:11 pm

hooperswish wrote:

anti drainback is not needed since the filter is not upside down, as in a lot of japanese vehicles.
Therefore, the oil can't drain back. It just sits in the filter...

I think the anti-drainback will hold back all the oil above the level of the filter, that otherwise will drain down by gravity -- not just the oil in the filter itself..

hooperswish · **Posted:** Wed Jul 22, 2009 5:36 pm

dkcase wrote:

hooperswish wrote:

anti drainback is not needed since the filter is not upside down, as in a lot of japanese vehicles.
Therefore, the oil can't drain back. It just sits in the filter...

I think the anti-drainback will hold back all the oil above the level of the filter, that otherwise will drain down by gravity -- not just the oil in the filter itself..

But if the oil filter is full, gravity will keep it there. It can't hold any more oil, as it is already full and will stay that way by gravity.More oil can't drain there because it is already full. If you look at a napa gold filter box, it talks of the anti drain valve and states "if needed". The way I understand it, the 3.7 does not need it due to its close to vertical application.

tjkj2002 · **Posted:** Thu Jul 23, 2009 1:43 am

hooperswish wrote:

dkcase wrote:

hooperswish wrote:

anti drainback is not needed since the filter is not upside down, as in a lot of japanese vehicles.
Therefore, the oil can't drain back. It just sits in the filter...

I think the anti-drainback will hold back all the oil above the level of the filter, that otherwise will drain down by gravity -- not just the oil in the filter itself..

But if the oil filter is full, gravity will keep it there. It can't hold any more oil, as it is already full and will stay that way by gravity.More oil can't drain there because it is already full. If you look at a napa gold filter box, it talks of the anti drain valve and states "if needed". The way I understand it, the 3.7 does not need it due to its close to vertical application.

That valve also keeps the oil pump full of oil to lessen the time the engine has no oil pressure upon startup,those few milliseconds add up fast after time.

Albert · **Posted:** Thu Jul 23, 2009 10:00 am

So all oil filters don't have an anti-drain back valve in them???? I thought they did??

tjkoen01 · **Posted:** Thu Jul 23, 2009 1:17 pm

tjkj2002 wrote:

hooperswish wrote:

dkcase wrote:

hooperswish wrote:

anti drainback is not needed since the filter is not upside down, as in a lot of japanese vehicles.
Therefore, the oil can't drain back. It just sits in the filter...

I think the anti-drainback will hold back all the oil above the level of the filter, that otherwise will drain down by gravity -- not just the oil in the filter itself..

But if the oil filter is full, gravity will keep it there. It can't hold any more oil, as it is already full and will stay that way by gravity.More oil can't drain there because it is already full. If you look at a napa gold filter box, it talks of the anti drain valve and states "if needed". The way I understand it, the 3.7 does not need it due to its close to vertical application.

That valve also keeps the oil pump full of oil to lessen the time the engine has no oil pressure upon startup,those few milliseconds add up fast after time.

never thought about that. for the pump to loose it's prime, wouldn't it have to siphon the filter dry or at least enough to get some air in to break the vacuum and let the oil drain out of the pump and pickup? when I pull my filter off it is still full of oil (as a side note; I also fill the filter before I install it too to lessen the time it takes to build pressure).

hooperswish · **Posted:** Thu Jul 23, 2009 5:32 pm

tjkoen01 wrote:

(as a side note; I also fill the filter before I install it too to lessen the time it takes to build pressure).

I do the same. My father taught me to do it that way years ago, and I wasn't sure why at the time. It is a good practice for getting oil flowing faster after a fresh oil change. You know the quick change shops sure won't do it for you!

Oil filter

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