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

__________________
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.

__________________
2008 3500 mega dually, 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

__________________
1998.5 Ram 2500 CTD, Reg. Cab, Long Box, 5 speed, 4x4, 3.55's, 140K+ miles, bone stock, 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!!!!!

__________________
07 3500 6.7/6auto, afe, flashpaq, insight, 2 micron oil/fuel filters, amsoil everywhere, riderites, 91 gallon aux, mag-hytec, www.crewcabsleeper.com, www.hitchcrafter.com air-ride 5ver, 100k miles and truckin - check out my truck pics

[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.

__________________
08 mega cab, dpf fell off(dodge needs to raise their standards ) Stage 2 CAI Edge juice w/attitude stacked with BDPP

[Jesparza300]

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

__________________
07 dodge ram 2500 4x4 6.7 diesel
68RFE 3.73 gears

---

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.

__________________
07.5 WHITE QUAD CAB DUALLY "DA BOSS" 4X4, G56, AFE STAGE 2 INTAKE, H&S 4" STRAIGHT EXHAUST WITH 6" TIP, 3C EGR/COOLER DELETE , COBRA 29 NW LTD CLASSIC CB W/WILSON 2000 TRUCKER ANTENNA AND 1000W LINEAR , BYPASS FLEETGUARD WATER/FUEL SEPARATOR, BMK 25, BLACK RIMS, AMSOIL FLUIDS, EDGE INSIGHT, TS MP-8 AND I'M NOW ROLLIN (A LITTLE) COAL! 750 MILES A WEEK PULLER. *SB clutch on the way!*

[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.

__________________
2007 68RE 6.7L QC DRW 4x4..... 5" BADP TBE, EGR Delete, EGR Cooler Delete (Thanks to Kurt), Edge w/Attitude, TS MP-8, Firestone Airbags w/ Dual Control, AFE Filter, 100 gal Transfer Flow Aux Tank, B&W G/N & 5th Wheel, Dynatrac Hub Kit, Warn 16.5 Winch, Optima Red Batteries, Triple Train Air Horn, Amsoil in & out..... Trying to talk the Wife into letting me get Suncoast Tranny, Water/Meth injection and a few other "Necessary Items":

[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.

__________________
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

__________________
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!

__________________
08 Laramie 2500 6.7 auto, PPE
35 BFG's XD's, S&B, 2" level, Century box cover. BW Flares. NEED DPF DELETE!

[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.

__________________
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!)