Originally Posted by MillerTime
This is why the guys I work with, say to stay with oem filters for best results.
Ive seen the metal suspended in fuel that made it thru aftermarket filters. You can actually see it if placed in a jar and shine light in it, I sparkles so pretty
kinda hard on injectors and pumps though.
To each thier own though. I will only use OE on my stuff though!
MillerTime- Future Sabre Handler!!
As long as you're using the newer OEM design RACOR brand "Coalescer" filter(PFF50216) design, it's a 4uM rating and 99% water removal capability.....a VERY good OEM filter. The original GM filter was 6-8uM and had about half the dirt holding capacity of the newer design.
Racor Coalescer Fuel Filter (2001-Current Duramax) [PFF50216] - $31.99 : DMAXSTORE.COM, Your Duramax Diesel-Only Shopping Resource
The Carquest #86528 2uM unit would be "slightly" better for particulates than a stock filter.
The filter that wreaks much havoc on the Duramax engines is the Wix Fuel filter with the Black plastic body. It allows dirt to bypass the filter when it's full and has destroyed countless Duramax fuel injection systems.
Duramax Fuel System DEATH filter:
I'm a little anal with filtration on CR Diesel motors as you can tell...LOL
I actually upgraded my CAT 1R-0749(On the Nicktane Adapter) and CAT 1R-0751(on AirDog) to their newer "UHE" (Ultra High Efficiency) design which filters even finer than their previous 2uM Absolute filters.
CAT 416-1225 (UHE)(replaces 1R-0749 on Nicktane Adapter)
CAT 364-5287 (UHE)(Replaces 1R-0751 on AirDog)