3 oil filters

[JSTA281]

I bought my Excursion used about a month ago. The other day I was looking underneath the drivers side of the truck and I saw two additional oil filters mounted together on the frame rail. So in addition to the filter in the stock location on the block it appears that I have two remote oil filters. One of the two filters was a Amsoil brand.

Question 1 Does this probably mean that the previous owner was running amsoil and if so does running amsoil require the installation of two additional filters?

Question 2 Is there any other reason why someone would add remote oil filters? In other words could these oil filters be filtering somthing else? Is that a dumb question?

Question 3 If these are part of some sophisticated oil filtering system can someone explain how these are plumbed because it looks like at least one of the two additional hoses routing to the two additional filters has been capped.

[bigcountrysg]

Are you sure they are oil filters and not fuel filters. Like a Fass fuel system or something. Just asking.

As for AMS Oil requiring the extra filters, the last time I checked they did not require it. This maybe someones custom work. As for how it is plumbed I think the simple way is from the oil cooler. As in the feed line to the oil cooler goes into the filter system then to the cooler and then back to the engine.

[JSTA281]

Originally Posted by bigcountrysg

Are you sure they are oil filters and not fuel filters. Like a Fass fuel system or something. Just asking.

As for AMS Oil requiring the extra filters, the last time I checked they did not require it. This maybe someones custom work. As for how it is plumbed I think the simple way is from the oil cooler. As in the feed line to the oil cooler goes into the filter system then to the cooler and then back to the engine.

I am not sure what they are filtering but I am pretty sure they are oil filters. I need to take a closer look at where they are plumbed.

[bigcountrysg]

There is a fuel filter system that mounts on the frame rail that looks like oil filters but they are actually fuel filters. There is also an aftermarket fuel pump filter system called FASS. If you could take a picture and upload it we maybe able to help you figure it out better then with descriptions.

[Blue01F250]

and take some pictures if you can and post them up and I bet you'll get some goood answers..


edit: see bigcountrysg and I were thinking alike!

[JSTA281]

here are some pics, it obvioulsy is not "hooked up" any longer as I found the end of both hoses capped and shoved up in the chassis.

So what is it, and should I hook it up and used it since it is alreadly there?

[vitalidle]

That is the amsoil duel bypass filtering system. There was some issues with that system on the 7.3 one being it caused low oil pressure and two a harmonics problem or vibration from the system. The single bypass is the better system for the 7.3.

[JSTA281]

Originally Posted by vitalidle

That is the amsoil duel bypass filtering system. There was some issues with that system on the 7.3 one being it caused low oil pressure and two a harmonics problem or vibration from the system. The single bypass is the better system for the 7.3.

So if i don't intend on running amsoil, and the system in the pictures sucks I guess I should just remove it, right?

[vitalidle]

Sure post it up in the for sale section. Somone is always looking for that kinda stuff. They are pretty pricey brand new I wouldn't know where to start on an asking price.

[JSTA281]

Originally Posted by vitalidle

Sure post it up in the for sale section. Somone is always looking for that kinda stuff. They are pretty pricey brand new I wouldn't know where to start on an asking price.

I guess my question is why would someone want to buy it if it resulted in low oil pressure an is noisy? Because if you were telling me that it is a good system then I might consider running the amsoil.

And if i was going to hook it back up, can you tell me where it connects in the oiling system?