What are you going to do for a fuel heater?
The filtration may be equal to OEM, but the water separation is not. Most fuel is dry enough it’s not a big deal, until it is. Is trading a little ease of maintenance every 15K miles worth it?
I remember how bad the specs were on the original AD and FASS f/w sep’s. The AD was 140um, 50% free water, 0% emulsified water separation, which was better than the FS1023 that FASS chose, 100um, 0% free water, 0% emulsified water separation… it was basically a rock strainer with a drain, so just having a drain doesn’t always mean it can separate water out. At least the Cat f/w seps are better than that.
Because the f/w seps are post fuel pump the emulsified number is rated important, which is where the Cat filter is lower than the OEM. On the C10 and C12 where is the lift pump, if any, in relation to the primary filter?
I ran a FS19823 as the first filter on my 05 since it had a WIF sensor compatible with the trucks WIF sensors (once enabled in the ECM). It’s “only” 15um absolute, but on a primary filter that’s fine.