CAT filter question..... - Page 2

tmm403 · 11-19-2012, 03:19 PM

I use the cat filter and let my airdog collect the water.

hvactech · 11-19-2012, 03:41 PM

cat 1r-0750 is a 2 micron filter and water seperator. but a Fleetguard fs1212 is a better w/s, but it has to be on vacumm to work right meaning not after a lift pump

bigjohn · 11-19-2012, 03:58 PM

You'll be fine running the cat filter there built to separate the water I wouldn't worry about it just change the filter at 6 to 8000 miles.

nick1camper · 11-20-2012, 03:33 AM

Thanks for all the responses. It sounds like I will be better off with the CAT filter alone than with the factory filter. I have yet to see the "water in fuel" light come on anyway, on either of the dmaxes I've owned, so it's worth it for me to switch.

TakeEm · 11-20-2012, 06:39 AM

Yeah honestly IMO Cat wouldn't warranty a fuel system on their engines, with a filter that wasn't designed to separate water. I mean, on a job site, transfer tank to transfer tank (shipping to jobsite) I would expect water to be pretty common to get in fuel tanks.

Sent from my Autoguide app.

**sickdiesel** · 11-20-2012, 06:41 AM

Quote:

Originally Posted by takeem

yeah honestly imo cat wouldn't warranty a fuel system on their engines, with a filter that wasn't designed to separate water. I mean, on a job site, transfer tank to transfer tank (shipping to jobsite) i would expect water to be pretty common to get in fuel tanks.

Sent from my autoguide app.

x2.

2300Hz · 11-20-2012, 09:21 AM

Technically speaking, Cat does not market the 1R-0750 as a water separator and because of that, they call it a secondary filter. They recommend a water separator as a primary filter. But that does not mean you can't just run the 1R-0750 and be perfectly fine....plenty of people are doing that without problems. Cat would just not recommend it.

For the sake of peace of mind and sanity, I'd run a Donaldson water separator with the clear bowl if that is to be your primary filter.

07LBZ6.6 · 11-26-2012, 07:14 AM

If you dont already know the factory fuel filter and water seperator are so inefficent most people would crap their pants if they knew what was getting through it, 60% at 6 microns vs 98% at 2 microns with the CAT. Im running the CAT 1r-0750 standalone and have no worries about not having the GM "Water Seperator"

**sickdiesel** · 11-27-2012, 08:41 AM

Quote:

Originally Posted by 07LBZ6.6

If you dont already know the factory fuel filter and water seperator are so inefficent most people would crap their pants if they knew what was getting through it, 60% at 6 microns vs 98% at 2 microns with the CAT. Im running the CAT 1r-0750 standalone and have no worries about not having the GM "Water Seperator"

X2.

Sent from my iPhone using AutoGuide.com App

nick1camper · 11-27-2012, 08:50 AM

Thats cool. I'm pretty much sold on the CAT adapter, but just one more question.... When you pull the filter off to change it, what keeps the adapter from coming off as well?

11-19-2012, 03:19 PM	eBay Motors #11 (permalink)
tmm403 Senior Member Join Date: Aug 2011 Location: Jersey Posts: 715	I use the cat filter and let my airdog collect the water. __________________ 2006 Chevy Silverado ..LBZ..mbrp 5" turbo exhaust (no muffler or cats) modified stock air intake, EFI by Kory Willis, Big Dipper stage IV trans, Precision ML, Pump rub fix, Alligator trans lines, Autometer guages, Airdog II-165, Ready Lift leveling kit, 285/75 Nitto Dune Grappler, Bilstein shocks, Cognito idler and pitman arm braces, PPE tie rod sleeves, fingerstick, blocker plate, pvc reroute,air intake regulator blocked, Banks boost tube, All Amsoil fluids

11-19-2012, 03:41 PM	eBay Motors #12 (permalink)
hvactech Junior Member Join Date: Feb 2011 Location: Pendleton Posts: 166	cat 1r-0750 is a 2 micron filter and water seperator. but a Fleetguard fs1212 is a better w/s, but it has to be on vacumm to work right meaning not after a lift pump __________________ 2001 RC/lb lb7 zf6 EFI 120hp tune. 5" exhaust, Custom Boost Valve Holly Lift pump, Dual Filtration system,Custom Traction Bars 16" method race wheels w/ BFG allterrains Blad tires and clutch slippage thanks to sheid Diesel extravaganza 2012

11-19-2012, 03:58 PM	eBay Motors #13 (permalink)
bigjohn DuramaxForum Enthusiast Join Date: Apr 2012 Location: Pittsburgh Pa Posts: 2,137	You'll be fine running the cat filter there built to separate the water I wouldn't worry about it just change the filter at 6 to 8000 miles. __________________ 2006 2500 HD SLT ECLB, LBZ, Bilstein shocks,Banks 4inch exhaust, Alligator Adp Cat filter. And S&B air intake good to be driving a diesel again. 2002 Chevy silverado 2500 HD, LB7, traded it on a gasser and then traded it in for LBZ. LET'S GO PENS!!!

11-20-2012, 03:33 AM	eBay Motors #14 (permalink)
nick1camper Senior Member Join Date: Dec 2011 Location: Eldon, Iowa Posts: 853	Thanks for all the responses. It sounds like I will be better off with the CAT filter alone than with the factory filter. I have yet to see the "water in fuel" light come on anyway, on either of the dmaxes I've owned, so it's worth it for me to switch. __________________ 2005 ext cab sb LLY 4" exhaust w/muffler, EGR delete/Sinister diesel, Kodiak LBZ mouthpiece, PCV rerouted, Nicktane/CAT adapter, Autometer pyro & boost gauges, EFI Live by Kory, Transgo, pump rub kit, LBZ intake conv, H2's, Debadged

11-20-2012, 06:39 AM	eBay Motors #15 (permalink)
TakeEm DuramaxForum Enthusiast Join Date: May 2011 Location: Pinedale WY Posts: 2,566	Yeah honestly IMO Cat wouldn't warranty a fuel system on their engines, with a filter that wasn't designed to separate water. I mean, on a job site, transfer tank to transfer tank (shipping to jobsite) I would expect water to be pretty common to get in fuel tanks. Sent from my Autoguide app. __________________ Caleb 22 2007 LBZ CCSB S475/stock Wehrli Twin Turbo Kit/Suncoast Built by Dmitri Millard EFI Live DSP5 by Duramaxtuner.com 5" DE, rerouted, debadged, demolded, 18X9 BMF Novakanes Stealth wrapped with 285/65/18 Nitto Trail Grappler MTs, 45 gallon transfer flow replacement tank, Amp power steps, All Season bulletproof trans/power steering line kit, Airdog II 165, Nicktane with Cat filter, Edge Insight CTS with pyro Big thanks, Duramaxtuner.com & Willie @ Synthetic Motorsports

11-20-2012, 09:21 AM	eBay Motors #17 (permalink)
2300Hz Junior Member Join Date: Oct 2011 Location: Altoona, PA Posts: 234	Technically speaking, Cat does not market the 1R-0750 as a water separator and because of that, they call it a secondary filter. They recommend a water separator as a primary filter. But that does not mean you can't just run the 1R-0750 and be perfectly fine....plenty of people are doing that without problems. Cat would just not recommend it. For the sake of peace of mind and sanity, I'd run a Donaldson water separator with the clear bowl if that is to be your primary filter. __________________ 2005 Silverado LT 3500 SRW CC LB 6" SuperLift, 315/75/16, LBZ MP, EGR Blocked

11-26-2012, 07:14 AM	eBay Motors #18 (permalink)
07LBZ6.6 DuramaxForum n00b Join Date: May 2012 Location: Indiana Posts: 19	If you dont already know the factory fuel filter and water seperator are so inefficent most people would crap their pants if they knew what was getting through it, 60% at 6 microns vs 98% at 2 microns with the CAT. Im running the CAT 1r-0750 standalone and have no worries about not having the GM "Water Seperator" __________________ 2007 LBZ Black Crew Cab Short Bed LT3 Dark Charcoal Interior with Sunroof Stock for now...

11-27-2012, 08:50 AM	eBay Motors #20 (permalink)
nick1camper Senior Member Join Date: Dec 2011 Location: Eldon, Iowa Posts: 853	Thats cool. I'm pretty much sold on the CAT adapter, but just one more question.... When you pull the filter off to change it, what keeps the adapter from coming off as well? __________________ 2005 ext cab sb LLY 4" exhaust w/muffler, EGR delete/Sinister diesel, Kodiak LBZ mouthpiece, PCV rerouted, Nicktane/CAT adapter, Autometer pyro & boost gauges, EFI Live by Kory, Transgo, pump rub kit, LBZ intake conv, H2's, Debadged

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