I bought a coolant filter mount and it came with a new Fleetguard WF2074 filter. Unfortunately, it has DCA4 additive for a 36 gallon cooling system so I can't use it. I've always wondered what these looked like inside, so here it is cut open.
It's a paper element that seems to be stained by whatever the additive is inside. The additive seeped out.
Coil spring.
I removed the bottom plug in the element, and the center of the filter is packed full of additive.
All the additive dumped out.
Not sure if this is a date code, would be interesting to know how long this filter has been sitting around.
I didn't expect to see that much additive inside the filter. If someone installed this filter on a typical 3 to 4 gallon cooling system I have a feeling it wouldn't end well.
![[Linked Image] [Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2019/11/full-35242-38281-1.jpg)
It's a paper element that seems to be stained by whatever the additive is inside. The additive seeped out.
![[Linked Image] [Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2019/11/full-35242-38282-2.jpg)
Coil spring.
![[Linked Image] [Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2019/11/full-35242-38283-3.jpg)
I removed the bottom plug in the element, and the center of the filter is packed full of additive.
![[Linked Image] [Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2019/11/full-35242-38284-4.jpg)
All the additive dumped out.
![[Linked Image] [Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2019/11/full-35242-38285-5.jpg)
Not sure if this is a date code, would be interesting to know how long this filter has been sitting around.
![[Linked Image] [Linked Image]](https://www.bobistheoilguy.com/forums/attachments/usergals/2019/11/full-35242-38286-6.jpg)
I didn't expect to see that much additive inside the filter. If someone installed this filter on a typical 3 to 4 gallon cooling system I have a feeling it wouldn't end well.