Just curious about who has had injector failures and what the cause might be.

If use use a fuel additive, which one is your favorite?

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U.S. Army Retired

My daily crd has never had a failure. I recently had 8 tested at a Bosch shop and one came back as bad. So for me 1 out of 12 has failed.

I don't really know the history of the 8. For my regular crd I use diesel kleen whenever it gets below 20f

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2005 Crd Silver Limited- arps, rockers, 7v etechno's, egr deleted, v6 airbox, metal cac's. Yeti's stage 2 tune. Euro TC, Ram tcm, pml transmission pan, facet lift pump

I've never had an issue but I am also only at 76000 miles. I had bought a case of Stanadyne for the fuel but when I ran out I just started picking up Diesel Kleen locally.

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2006 CRD - GTB2056 turbo by Dieselguy86, Eco Trans Tune, Lift Pump, Week's, HDS Tstat, Racor Filter, ARP's, OME 790's+Top Plate, JBA 2.5", JBA UCA, Moab's+265/75R16, ARB Bull Bar, 4.10's, TrueTracs

If I'm on the ball I order Schaeffer Oil | Diesel Treat 2000 Fuel Additive online, winter and regular types.

I read some big article from a guy who set the world MPG record with his cummins diesel and in there Schaeffer was the best lubricity per $, or there about. I think it's what that guy used.

I used Diesel Kleen otherwise, although if I remember correctly, it wasn't that great in the comparisons. Better than nothing I figure.

Oh, I think that cummins guy (or the lab that tested the various additives) showed that Schaeffer actually payed for itself and actually saved money because of the small increase in MPGs (cetane boost I guess?), but it's a very small gain, like .5 mpg or something. Maybe it's BS, IDK...

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05 CRD: H.D.S2 stat,WW Ironrock trilink&LCA's, OX rear,ARB front, 4.10's, ARB bumper, Suncoast,OME 3.5, JBA UCA,rock rails, Moabs&265/75 Duratracs, GDE tunes ,FFD fan,ARP's, 2 micron fuel, new valves,sasquatch battery tray & grid heater, tensioner relocated
Mech fan, VH & AC delete

Haven't had one yet, I add Howes diesel lubricant and conditioner every time I add fuel, this is also an anti gel which I need up here, I use this stuff in my tractors as well as the Duramax.

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2014 Chevy Silverado Crew Cab 5.3 Ecotec LTZ Z71 4x4
2012 Ford F-150 XLT EcoBoost 4x4
2007 Chevy Silverado 2500 HD D-Max 4x4
1996 Dodge Ram 1500 4x4 (just about dead)
2006 Jeep Liberty CRD

Two crds and never an injector failure. Had a few injector failures on my last two 06 Cummins. STOPPED running additives and guess what! No more injector failures. I don't put anything in my tank anymore except fuel.

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2020 Ram 1500 CC Ecodiesel Limited
1995 Dodge Ram 2500 4x4, 5.9 Cummins, 47RH, Reg Cab
2005 Liberty CRD,fixed the rockers and a couple more things,GDE Hot tune,Weeks Stage 1 and 2 EGR delete,Hot Diesel solutions Tstat assembly(wonderful heat!), ARP studs, OME 1.5" lift.....thanks Seth! (Sold)
2006 Liberty CRD....The Moose Hit

I have used Millers oil to help clean up carbon deposits on mine for 2 or 3 times. Some people that drive diesels here add a couple of litres of gasoline to every fill up. Personally I would be careful how much cleaner you use? The high pressure injector pump relies on the lubrication from the fuel. All cleaners have solvents that can reduce the fuels lubrication.

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2005 KJ RENAGADE 2.8 CRD 6 SPEED NP242 FULLTIME 4X4

I use Schaeffer's, Opti-Lube XPD Formula Diesel Fuel Additive, Sea Foam and 2 stroke oil. Depends on where I am, the time of year and what's available. I also run bio-diesel when I can - which is most all the time

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2006 Jeep Liberty CRD 142,000 miles New engine 2-2014, Green Eco tune, FS2500 bypass filter Weeks elbow, European Torque converter, brakes front UCA's wheel bearing and front hubs. Front hitch OEM lift pump
98 K2500 Suburban 6.5td
96 K1500 " 6.5td
95 2 door Tahoe 6.5td
94 K3500 cc srw 5 speed 6.5td
91 International Model 6 speed spicer 4700

no# 1 failed shortly i got my kj , happened on freeway at 2000rpm, i was chasing air in fuel issue at the time, replaced f, filler added howes meaner cleaner at same time (lots of cleaner) so either somthing got stuck in keeping injector open or ball seat control valve was worn out (water in fuel) don't know , fuel shop test them they all automize ok but 2 of them didn't hold press (i think they didn't have a proper test bench) anyhow i did replace 2bad ones ,now on i only use stanadyne fuel conditioner , and I'm looking to install somting like ww diesel did (secondary 2 micron filter ) for now i have mopar brand. o at the time of failure sounded just like bad rocker , only different was high exhaust temp on #1 and smoke .

No injector problems so far,
I add some Diesel Kleen +Cetane Boost mixed with 1qt. of Walmart 2 cycle oil on every full tank fill up in both my Jeep CRD and Dodge Cummins.
The 2 cycle oil adds lots of lubricity to the fuel to help protect the fuel pump and the injectors.
Diesel fuel is the only thing that lubricates the fuel pump and injectors in modern diesel engines...
Fuel starvation to a fuel injection pump can destroy it; another good reason in my opinion to have a lift pump and good lubricity diesel fuel!
A friend who drag races diesel trucks told me about the 2 cycle oil trick years ago when I first got my Dodge Cummins....

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Supporting Vendor and Moderator of LOST
05 Jeep Liberty CRD Limited
Ironman Springs/Bilstein/Shocks
Yeti StgIV Hot Tune
Week's BatteryTray
No FCV/EGR
Samcos/ProVent
SunCoast/Transgo
Carter Intank-pmp
2mic.Sec.Fuel Filter
Flowmaster/NO CAT
V6Airbox/noVH
GM11 Bld.fan/HDClutch
IronrockArms/wwdieselMount
98 Dodge Cummins 24 Valve

No injector failures at 81k miles. Purchased Jeep with 45k miles in 5/2014.

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2006 CRD Sport
GDE FT ECO tune, GDE TCM ECO tune, ARP studs, HDS-001 203F T-Stat, 3.7L nylon fan & Hayden 2905 clutch, Carter P76148M in-tank pump, Racor 245R122 filter head & 2 micron R25S fuel filter, Provent 200, Samcos, Fumoto F-102, Litens 920834A de-coupler, PML rear diff cover, OEM trans pan with welded in bung, JBA UCAs, full skids.