6.7 fuel

[justuc]

has anyone ran regular low sulfur diesel in thier 6.7? seen a thread on it a long time ago but cant find it now, i dont see if you run it and put some two cycle in it i dont think it would hurt it! let me know yall thought plz! i can pick up low sulfur on discount intsead or 4.69

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2007.5 6.7 QC,MEGACAB, LOADED W/EVERY OPTION, FRONT/REAR REPLACEMENTS, 2 12'S IN A MEGA BASS BOX

[RATLIN'HP]

Originally Posted by justuc

has anyone ran regular low sulfur diesel in thier 6.7? seen a thread on it a long time ago but cant find it now, i dont see if you run it and put some two cycle in it i dont think it would hurt it! let me know yall thought plz! i can pick up low sulfur on discount intsead or 4.69

Don't do it without DPF/EGR delete. Then you probably can, but you'd have to find it first. Most all pumps are ulsd.

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2008 3500 mega dually 4x4, h&s stage 2, egr quit working, gutted tube, edge juice/att., afe pro dry, 68rfe, 3.73's, oval stainless tubes.
REAL TRUCKS RATTLE

[blowincoal]

I have heard do not put LSD in anything newer, they were designed for ulsd, all that sulfur might wreck something, but its your money go with gut but if it were me i'd pay the extra money and run the right fuel rather than paying for new parts

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1998.5 Ram 2500 CTD, Reg. Cab, Long Box, 5 speed, 4x4, 3.55's, 140K+ miles, 5" TBE DiamondEye straight pipe, EGT Boost Fuel Pressure guages, AirDog FP150, BHAF w/Outerwear Just a kid living the dream and .... JESUS LOVES YOU

[LittleOleHotShotter]

ive run it plenty of times with dpf/egr and without dpf/egr. Ive noticed my truck get hesitant after prolonged use with dpf/egr but cleared by itself after a few tanks of ulsd. runs the same with dpf/egr mia. think its a dpf thing!!!!!

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6.7/6auto, afe, flashpaq, insight, 2 micron oil/fuel filters, riderites, 91 gallon aux, mag-hytec, amsoils - 105,000 miles & parked @ $800 per month - check out my truck pics
http://www.myspace.com/coopertransport

[Syndrome]

The reason they went to the ULSD is for emissions, and then theres the DPF, so take the DPF/EGR out and burn whatever you can in it.

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08 mega cab, dpf AND egr fell off(dodge needs to raise their standards ) Stage 2 CAI Edge juice w/attitude

[Jesparza300]

I put 40 dollars of low sulfur diesel yesrerday for 4.31
pr is it better to run ultra low sulfur diesel

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TEXAS COAL ROLLERS SOUTH VP
07.5 dodge ram 2500 4x4 6.7 diesel
68RFE 3.73 gears all stock for now
http://www.cumminsforum.com/forum/texas/

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Last edited by Jesparza300 : 08-07-2008 at 11:36 AM.

[smoke46]

ULSD or LSD? I run lots of LSD through my truck (750gal farm tank) and have never once been to the dealership with any problems. Never had any codes or once has my overhead ever stated other than normal. Never had any catlyist full problems either. Funny, almost all I ever run is LSD and I've never had any problems with my truck.

[KodiakConstruction]

I think the difference in the LSD and ULSD is for the soot build up. I have 150k miles on my 6.7L. I have ran LSD, ULSD, Fuel from Mexico, etc and haven't had any fuel issues. I would just suggest maybe changing the fuel filter more ofter. I change mine every 10K but that will soon be obsolete as I will be installing a FASS 150gph from K2 in the next few weeks. I think my stock pump is getting ready to crap out on me.

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2007 6.7L QC DRW 4x4..... Custom Built 68RE by DPT ..... 5" BADP TBE, EGR & Cooler Delete, Edge w/Attitude, MP-8, Firestone Airbags w/ Dual Control, AFE Filter, 100 gal Transfer Flow Aux Tank, B&W G/N, Dynatrac Hub Kit, Warn 16.5 Winch, Optima Batteries, Triple Train Air Horn, Amsoil in & out, Full line of Smoked Recon's/Line of Fire/Big Rig Lights.....

[BillG]

For people who still have their emissions crap in place, you're lucky if you run LSD without problems. The change to ULSD was to help meet the emissions requirements for reducing the nitrogen compounds (NOx). The deal is that they invented the NOx adsorber (sits before the DPF) to collect the nitrogen compounds and the cooled EGR helps reduce the formation of nitrogen compounds. The picture gets complicated by the fact that sulfur in the fuel will fill up the NOx adsorber so that it doesn't have room to collect the NOx. They call it sulfur poisoning. So, the regen cycle you see on some monitors called DeSOx cleans the sulfur out of the NOx adsorber. Now, since the NOx adsorber is so sensitive to sulfur, the industry had to move from LSD which is 500ppm max sulfur to ULSD which is only 15ppm max.

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08 6.7 2500 Mega, 68RFE, Stock!, Edge Insight (thinks it's a DashHawk!), ELM327 & Perl/TK monitor/data logger. Truck crying for stacks & EGR delete, 2nd turbo smothering.
3rd diesel (06 5.9 killed by tree, 03 5.9 sold, sorely missed!)

[hmathews]

Originally Posted by BillG

For people who still have their emissions crap in place, you're lucky if you run LSD without problems. The change to ULSD was to help meet the emissions requirements for reducing the nitrogen compounds (NOx). The deal is that they invented the NOx adsorber (sits before the DPF) to collect the nitrogen compounds and the cooled EGR helps reduce the formation of nitrogen compounds. The picture gets complicated by the fact that sulfur in the fuel will fill up the NOx adsorber so that it doesn't have room to collect the NOx. They call it sulfur poisoning. So, the regen cycle you see on some monitors called DeSOx cleans the sulfur out of the NOx adsorber. Now, since the NOx adsorber is so sensitive to sulfur, the industry had to move from LSD which is 500ppm max sulfur to ULSD which is only 15ppm max.

In other words 15ppm sulfur was not really help the environment but to help the Nox filter perform at its best??? That makes me even more mad... I thought we were doing the environment a big favor by reducing 485ppm (500 minus 15)of sulfur

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2007.5 RAM 2500 MegaCab (Black), 6.7L Cummins... Auto, Truck came with no DPF and EGR, MP-8, S&B CAI

[Freedspirot]

I ran a tank of LSD and got the dreaded P2262 code!
After switching back to USLD Code went away!

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08 Laramie 2500 6.7 6spd auto,PPE/PWR Puck Stack! Recon Smoke Cab & 3rd Brake Lights.
35 BFG's XD's, S&B, 2" level, Century box cover. BW Flares.Window Tint. 5.5 Exh.tip. EGR Unplugged!

[BillG]

Originally Posted by Freedspirot

I ran a tank of LSD and got the dreaded P2262 code!
After switching back to USLD Code went away!

Not saying it's not related, but that 2262 is a strange beast that seems to wander in and out at will for many of us.

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08 6.7 2500 Mega, 68RFE, Stock!, Edge Insight (thinks it's a DashHawk!), ELM327 & Perl/TK monitor/data logger. Truck crying for stacks & EGR delete, 2nd turbo smothering.
3rd diesel (06 5.9 killed by tree, 03 5.9 sold, sorely missed!)