AH64ID

Thanks to everyone for the welcoms. That data is directly from Fleetguard. Which was easy to obtaion, so it makes the lack of flow and f/w separtion make AD and FASS look like they did zero research on the filters they chose.

I personally don't prefill any of my filters. I cycle the lift pump a few times for fuel and just start it for oil. The oil pressure alawys comes up faster that it does with its 30* outside, so I am not worried. (My oil psi sender is on the driver side of the block by the ECM, so it wont show pressure until the block has full pressure).

That is exactly what that means. You have a pump capable of 150GPH, but filters only rated for 20GPH and 60GPH. The filter will still probably flow 150GPH, but they are not removing their rated water or contaminates at their maximum capability.