OK folks riddle me this... After looking at the VSE video on Post #61, it appears the end of the WIF probe is still about 1 1/2" to 2" from the bottom of the water separator. That in turn would make the WIF probe in the Fleece filter about 3" - 3 1/2" from the bottom (based on P553203 vs P551320 filter length). In either case, there will be a substantial amount of water in the filter before the WIF probe is triggered. Considering the passive / active Twist & Drain WIF probes Donaldson offers will trigger when water reaches the base of the filter element (same as how the OEM operates), is there really any advantage between the Fleece and VSE offerings (VSE nearly 3X the price of the Fleece) - other than being able to run a P553202 / P553207 / P553217 with additional water separation capability in the VSE as an additional safeguard?
the fleece is a single filter system and it will send water through the system before you get a water in fuel warning as the probe in the huge filter fleece is using the oem water sensor sits above where the fuel pick up is.
there is no water drain on the fleece setup.
I had considered the fleece until I started reading how the oem setup worked.
the vse system replicates the oem dimensions for the primary filter and adds in a post filter at 3 micron size that will not see water in fuel before the primary filter sends a warning message.
if you are not going to use the vse stick with oem as the oem setup is better than the fleece. the oem filter setup does a really good job as it is. it's just a little more difficult to change filter elements due to the cartridge system and you don't have post filtration.