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LSD-The fuel not the drug.

1-tonmudder

1-tonmudder

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My dad is a diesel mech for a large trucking company(Old Dominion freight lines) and has been in that field for 30 years or so.He says that I need to stay away from Low Sulpher Diesel in my 96 PSD as it will cause problems with my pump and or injectors as it needs that to better lubricate the parts.

He is very knowledgable in fleet diesel's,but I'm not sure how up he is on light duty engines.Do I need to stay away from LSD like he says or will that be one of those things that will take a long time to affect my parts.

I'm not nessacarily questioning him,but he seldom works on trucks that are more than 2-3 years old.

I remember back in the 70's-80's you could get lead substitute for gasoline,is there something like that for this.

I really dont know of anywhere that dont sell LSD.So what is everybody else doing??
 
Thats kinda what I thought.Running red diesel is a big NO-NO.There is a big tractor show somewhere in KY that a guy I know goes to.He said they were stopping any truck that had a tank in the bed of it and were doing fuel samlples,and laying it to the ones running red fuel.
 
You can get lubricity additives for diesel.

After some discussion here -- search on my username -- I use a quart of non-detergent 30w oil to each 31 gallon tank.

-- A
 
send a pm to 4by4bygod

he has exactly what you need. ;) Or check out his vendor thread
 
Chevy305 said:
send a pm to 4by4bygod

he has exactly what you need. ;) Or check out his vendor thread
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one more GIGANTIC vote for ACES fuel additive from 4by4bygod. check out his vendor thread and read the testimonials. i'm running it in my 6.2 and couldn't be more pleased. the increased power is simply amazing and i'm getting better fuel economy so it pays for itself. i haven't tested the actual increase in mileage, but i'd say i'm getting at least 2mpg more right now. i'll be testing this on august 17. :)
 
1-tonmudder said:
My dad is a diesel mech for a large trucking company(Old Dominion freight lines) and has been in that field for 30 years or so.He says that I need to stay away from Low Sulpher Diesel in my 96 PSD as it will cause problems with my pump and or injectors as it needs that to better lubricate the parts.

He is very knowledgable in fleet diesel's,but I'm not sure how up he is on light duty engines.Do I need to stay away from LSD like he says or will that be one of those things that will take a long time to affect my parts.

I'm not nessacarily questioning him,but he seldom works on trucks that are more than 2-3 years old.

I remember back in the 70's-80's you could get lead substitute for gasoline,is there something like that for this.

I really dont know of anywhere that dont sell LSD.So what is everybody else doing??
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Your dad isn't wrong..sulfur does (did) provide some benefit..mainly lubricity for the fuel system, and it also kept bacteria, fungus and yeast in check..

It isn't realistic to try and "stay away from" the low & ultra low sulfur fuels because as of june 2006, all diesel fuel produced ( regardless of its intended use ) has been limited to 4 -5 ppm sulfur, at the refinery output.

What then happens is, as the fuel travels through the pipelines to the distribution points, the fuel "picks up" sulfur, so you never know how much sulfur is actually in there unless you test it..I've seen fuel labelled as 15 ppm ulsd actually test at 50 ppm sulfur.. I've also seen 15 ppm ULSD test at 3ppm sulfur..

does too little sulfur hurt you? yep..does too much? only if you have a particulate filter or oxidation catlayst.. the only reason sulfur was removed was to enable these exhaust devices to live longer..

Anyway, you asked what can be done about it.. ' red dyed off road fuel ' may or may not be the ticket.. remember, it's dyed for road tax purposes, not to signify sulfur content, which, as discussed, could be all over the map.

you could do the two stroke oil thing, but that can have long term consequences, and just as many people argue against it as for it.. do a lot of research on the topic before you jump in.

if you want something that solves the lubricity issue, and a whole lot more, click on the links below..
 
Just remember when useing additives the only thing they test for when suspect off road feul is used is the red dye. ATF happens to be very very close and if they so much as get a little pink, they will issue the ticket.

Balzer
 
LSD is not what you want to stay away from, it is ULSD. Ultra low sulfur diesle fuel is the new stuff with less lube in it. It is pretty hard to get away from these days though so your kinda stuck with it.

I add a good fuel system cleaner (amsoil, stanadyne, powerservice) to the fuel on every fill up and also TCW3 rated 2-stroke oil to the fuel. I add about 4-6oz cleaner and about 24oz 2-stroke for a full fillup. The 2 stroke oil is the lubricant for the injection pump. My Dodge has a VP-44 injection pump which is lubricated by the fuel so it is important that the fuel have enough lubricant in it. The IP by itself is $1000 + install if it fails so some fuel cleaner and 2 stroke is a better answer to me.

Harley
 
P.S. Please don't use ATF in your diesel fuel. It is a heavy duty detergent and can wear out rubber seals prematurely. Also don't use an alcohol based cleaner for the same reason.

Harley
 
Hossbaby50 said:
LSD is not what you want to stay away from, it is ULSD. Ultra low sulfur diesle fuel is the new stuff with less lube in it. It is pretty hard to get away from these days though so your kinda stuck with it.

I add a good fuel system cleaner (amsoil, stanadyne, powerservice) to the fuel on every fill up and also TCW3 rated 2-stroke oil to the fuel. I add about 4-6oz cleaner and about 24oz 2-stroke for a full fillup. The 2 stroke oil is the lubricant for the injection pump. My Dodge has a VP-44 injection pump which is lubricated by the fuel so it is important that the fuel have enough lubricant in it. The IP by itself is $1000 + install if it fails so some fuel cleaner and 2 stroke is a better answer to me.

Harley
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yup, 2 cycle tcw3, $8 a gallon at walmart, in my 05 cdt you can hear the difference and i got 4 mpg increase on my last trip to the coast. i go there about once a week and after the last couple trips i consistently got 4 mpg better. start your truck, then add it to the tank, a few minutes later you will hear a slight difference in sound, which leads me to believe it lubes pretty well.
 
Does the 2 stroke trick produce more smoke from the tailpipe? Are there any DOWNsides to using it?

Is the IP on my 2007 Cummins lubed by the fuel?
 
the deisel tech at my job did 2 leaking injection pumps on 90ish dodge p/u's within 1 month of the ulsd coming out. The new pumps are made to handle it though, so they say.
 
DEMON44 said:
BTW never ever crack a fuel rail fitting ir nut while the engine is running.

the rail could be seeing upwards of 25,000psi.
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HOLY CRAP thats a lot of pressure. Thats kinda cool.
 
Well at idle the rail pressure MIGHT be lower than that. But goose the throttle any amount and the pressure gets high real quick. Put the engine under full load and rail pressure can be over 30,000 psi...

Demon when do think its possible for cat cummins or detroit to go common rail, or will they (especially cat) go in some different and bizarre direction.
George
 
DEMON44 said:
I have ocationally used tc3w 2 stroke oil in my VP44 truck too. and I can attest to the instantanious quietning of the injection system. But I'm not buying into the USLD panic.


.........sounds alot like the y2k pandemic that never happened.


CAN....you don't have an injection pump you have a high pressure pump. its nothing fancy. Its called a Bosch CP3. Your truck is designed to run on ULSD, as is all newer diesels.
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Ditto.

A few things need clarified about this question. First "LSD - low sulphur" is the diesel fuel that had been available for years, "USLD - ultra low sulphur" is the new fuel which is required to meet 2007 emissions standards.

In regards to sulphur vs. lubricity:

Does sulphur provide lubricity = yes

Does the new fuel have less sulphur = yes

Does the new fuel have less lubricity = NO, because they have added substitube lubricity agents

I work in the automotive industry and therefore have been involved in testing vehicles with ULSD for years before it was commonly available (it was specially blended in small batches), and I have seen absolutely no indications it causes any issues with an older fuel system.
 
Can Can said:
Does the 2 stroke trick produce more smoke from the tailpipe? Are there any DOWNsides to using it?

Is the IP on my 2007 Cummins lubed by the fuel?
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Paul.. about that best that can be said for using the two stroke is that it can quiet the diesel "clatter".. of course, you are now adding a thicker fluid ( and thus thickening the fuel ), which your injectors aren't designed to handle..

To answer your question, combusting two stroke oil does make soot. Whether the soot is carbon or metallic in nature, depends on if the oil is ashless or not..

I believe you have a DPF on that truck, ( not sure if that's required in canada ) so I would recommend you not use it, and be sure to only use CJ - 4 engine oil.

overall, the fans of using it point to quiet injectors, or the fact that their truck hasn't blown up yet, as proof of success.. companies using large amounts of fuel and running their equipment 24/7 under serious loads don't consider it a viable option, and that's primarily due to emissions and equipment longevity concerns.
 
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6.2Blazer said:
Does the new fuel have less lubricity = NO, because they have added substitube lubricity agent

I work in the automotive industry and therefore have been involved in testing vehicles with ULSD for years before it was commonly available (it was specially blended in small batches), and I have seen absolutely no indications it causes any issues with an older fuel system.
Click to expand...

I've seen events that indicate otherwise..
 
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