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Duramax 6600 Discussion Forum for the Duramax 6600 Diesel Engine, including the LB7, LLY, LBZ & LMM engine specific topics.

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  #21  
Old 12-24-2009, 08:30 AM
Kennedy Kennedy is offline
Long Distance Crew Chief for BMDMAX
 
Join Date: Mar 2000
Location: Loyal WI US
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Quote:
Originally Posted by WyoDutch View Post
2009 1-ton extended cab.
.
Don't plan on doing anything except add lubricity agent to the fuel and regular OEM filter changes.

I fuel from my bulk tank, and logic dictates that if I were put a high-efficiency filter anywhere... it would be at the pump. At least that's my thinking.
Good logic indeed. Add a good dessicant breather/filter on the vent also. 99% of my fuel comes from my storage tank these days. If I make a long trip I add my 90 gallon aux tank which usually gets me home.

FPPF Total Power in all fuel run through this tank. I buy Amoco Premier straight #2 non winterized whenever possible. I usually end up with a load of #2 winterized each year, but if I can I buy straight up and treat myself.
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More than just a salesman-I use and test the products that I sell on a daily basis!
Superflow Lie Detector in house
2002 Chev K2500HD D/A CC Long LT 11.77@ 124mph at 7700# fuel only-e.t. needs help
2005 Chev K3500SRW D/A CC Long LT(SOLD)
2007 Chev K2500 Classic EC Short LT (Sold)
2012 GMC K3500SRW D/A CC Long LTZ Happy Birthday to me! Built 1 working day after my birthday and delivered 7 days later.
2016 GMC K3500SRW D/A CC short LTZ

Custom tuning in house using EFI Live tuning software!
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  #22  
Old 01-30-2010, 12:17 AM
havenopower havenopower is offline
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Join Date: Jan 2010
Location: GREELEY COLORADO
Posts: 10
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Hey bigchev what kind of turbo do you run and what brand of tranny do you have?
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  #23  
Old 07-29-2010, 02:21 PM
SoTxPollock SoTxPollock is offline
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Join Date: Dec 2004
Location: Texas
Posts: 678
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Quote:
Originally Posted by SoTxPollock View Post
2002 Chevy Silverado LTCC, SB,

Added Racor RS60s filtration post OEM, at 20,000 miles.

Original injectors, 132,000 miles, they're not as quite as they used to be, but still run great.
Never had any kind of problems, starting, running etc. Love that truck.

ROI, supposedly the filtration is down to about 2 microns so I don't expect any problems from particle errosion. I'm sure this has already saved GM some money on replacement of the injectors, next year come July it will be my nickle if they go bad. I jus think its an investment in assurance of continued top performance. I've always maintained my vehicles like I was going to walk out of the house in the morning and drive straight to New York without haveing to check anything first.

Side note: By the way JBPLOCK, you said SWR said the wear was 6 to 7mm size, that's not millimeters obvously, you ment microns right?
UPDATE FOR 2010-Had to do 8 new injectors at 160,000 miles on my nickle, waited too long go get in on the warranty. Truck runs better than it did when new, actually idles smooth now, it never did before. I suspect I may have had a bad injector right from the start at idle and never knew it since it was my first diesel, I also suspect that by the time 20,000 miles went by without additional filtration it was on the way to failure before I got the additional filter installed.

I suspect the mileage will drop a little from the original, but there's no scientific way to blame it on the injectors because of the ULSD which was not available during the first couple of years of the truck's life. I still love it. I would recommend extra filtration to anyone who like me wants to keep the truck for a long time.
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02 2500HD LT D/A SB CC 4X4 BLACK, Westin stainless nerf bars, BW GN Hitch,Racor 60S post oem fuel filter, Oil Guard bypass engine oil Filter. All synthetic fluids. Kennedy boost valve, edge, Modified air intake,EGT & Boost digital gauge,TransferFlow combo fuel & tool box, Air Lift Suspesion Bags Rear & compressor with remote, Bilsteins front & rear, Frontier front replacement bumper.
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  #24  
Old 10-03-2010, 06:37 AM
Mark Rinker's Avatar
Mark Rinker Mark Rinker is offline
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Join Date: Jun 2003
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2006 K3500 - went 166,666 miles until requiring injector replacement. Bone stock, fuel filter changed every 10-15K miles. Fuel sourced anywhere/everywhere across the US and Canada, Howes, FPPF, other name brand fuel conditioners run about 50% of the time.
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2011 Chevrolet Tahoe 5.3L daily driver
  • Previous owner of two 1994 6.5L K3500s, '01, '02, and '05 6.6L K2500s, '04 C4500, '06 K3500 dually, '06 K3500 SRW, '09 K3500HD SRW, '05 Denali
  • Total GM diesel miles to date : ~950K
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  #25  
Old 11-07-2010, 07:40 AM
Cliff Lewis Cliff Lewis is offline
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Join Date: Oct 2010
Posts: 5
Default 04 chevy 3500 lly

No added filters
215000 on original injectors
Loved it till all #### broke loose now not so much
I heard from a chevy mechanic that his friends lly went 1 million miles and motor never touched ?
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  #26  
Old 02-13-2015, 02:15 PM
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Mark Rinker Mark Rinker is offline
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2009 K3500 - Crew/Long SRW

285,000 miles on original injectors and going strong. No additional filtration, lift pump, etc. Fuel sourced at random pumps all over the US and Canada. Fuel additives run '...more often than not' but not one brand. Those used including Howes, Power Service, etc.

Due to constant towing, the total gallons of fuel run through this pump and injectors could easily be 80% more than typical - i.e. lifetime MPG is probably between 11 and 12mpg.

Go figure that one...
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2011 Chevrolet Tahoe 5.3L daily driver
  • Previous owner of two 1994 6.5L K3500s, '01, '02, and '05 6.6L K2500s, '04 C4500, '06 K3500 dually, '06 K3500 SRW, '09 K3500HD SRW, '05 Denali
  • Total GM diesel miles to date : ~950K
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  #27  
Old 12-20-2016, 11:51 AM
chessy56 chessy56 is offline
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Join Date: Jan 2006
Location: South Milwaukee, WI
Posts: 201
Default filtration

'01 LB7 in a 2500 HD P/U, nearing 440K miles.

OEM injectors lasted ~185K miles. On the 4th set now which I installed myself (along with new feed tubes to the injectors).

Added a 2nd filter as a primary, a Kennedy lift pump and a CAT UHE filter conversion on the OEM head somewhere between the 3rd and 4th set of injectors. 4th (current) set of injectors are still running after ~75K miles. While I smell a heavier odor to my exhaust now, balance rates are still within spec (worst is about -3.4, in Park, on cylinder #7), but it's not smoking at the tailpipe. Yet.

I use a Fleetguard FS1000 filter as my primary just after the tank (and before the lift pump), and use a CAT 364-5287 UHE filter before the HP pump. (In retrospect, I should've purchased another OEM filter head with the heater and used that with the primary as extremely cold weather leads to my primary clogging.)

Did it help? The benefits may be intangible, given that the replacement injectors for the LB7s are of lesser quality and just don't seem to last like the originals. But, any extra life I can squeeze of of them is a plus to me.
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"Chessy56"
So. Milwaukee, WI
'01 2500HD, LB7, 440K miles
"Stock" engine. Dual fuel filtration system with Kennedy lift pump, BF Goodrich Commercial T/A Traction tires

'17 2500HD, L5P (Happy Birthday/Merry Christmas to me!!! Not excited about loan and insurance costs though...)

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