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Our trucks and ULSF

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Old Jun 4, 2006 | 10:47 AM
  #1  
csramsey640's Avatar
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From: PA
Our trucks and ULSF

Ok I need educated on the specs of this new fuel, since its not yet in our area.

I understand it will be less than 500 ppm of sulfur content, yada yada yada. But what im not understanding is why exactly we need the sulfur? I know its lubrication, but if you pour diesel fuel on your hand, its already slick-unlike a gasoline. So why do our injectors, pump, etc need more lubrication, etc?

I am not at all denying, I just dont understand 100%(in our trucks) I know our trucks were made for use when the sulfur content was higher, and I use PS at every tank(unless I run out) but I cant say I ever heard of a fuel lubrication concern in our engines/ip's, or ever heard of someone who didnt get very high miles without a conditioner.

To replace the sulfur they are "planning" to take away, are they ingesting the fuel with another lubrication agent?

Thanks for shedding some light.
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Old Jun 4, 2006 | 11:11 AM
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I'n not sure but my reasoning was that it wasnt the sulfur that was the lubricant, but the proces to remove it that lowers lubricity. They will most likely add another product to raise the lubricity or they will be responsible for ruining all the pre 2007 diesel engines or at least their fuel systems. I use stanadyne to increse lubriciity, so far so good in all my ctd's
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Old Jun 4, 2006 | 01:13 PM
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From: Kailua Kona, Big Island
Thanks for posting this subject. I'd like to be brought up to date about these new fuels. Could you start by explaining the abbreviations you used? Are there any websites on the subject?
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Old Jun 4, 2006 | 05:25 PM
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phox_mulder's Avatar
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There's a bunch of discussions going on in General Diesel, Fuels.
https://www.dieseltruckresource.com/...play.php?f=110

phox
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Old Jun 4, 2006 | 07:32 PM
  #5  
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From: New Holland, PA
The distributor style pumps like the VE and VP44 are much more vulnerable to low lubricity levels than an inline pump. The only lubrication for the cam ring and rollers that run the injector plunger is the fuel. Our pumps need all the help they can get, especially when cranked up. That said, ULSD has to meet the same standards for lubricity as the current low sulfur fuel. Refiners will have to add lubricity additives if their fuel does not have enough lubricity. The sulfur is not a lubricant, but the processes used to remove it also lower the lubricity of the fuel.
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Old Jun 5, 2006 | 05:55 PM
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csramsey640's Avatar
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Thanks for shedding some light Dave, I guess thats what I was looking for. So basically other than another possible price jump, it should act the same as the fuel now, and ill keep using my conditioner as I do now

PPM=parts per million
ULSF=Ultra Low sulfur fuel
LSF=low sulfur fuel(either already been replaced at your pumps, or soon to be)


While on the subject, in one of my OTR truck mags, I seen that oil manufacturers are reqd to bump up their specs by October to meet the latest EPA garbage.
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Old Jun 5, 2006 | 09:20 PM
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From: Oak Lawn, IL
That all started to hit home this past weekend for me. Normally I just get one diesel pump at the station and thats it. While on my trip up to Wisconson Most stations had a diesel 1 and 2 and then there was a high and low sulfur fuel. Plus a few had offroad diesel at the pump. Just lots more choices than I'm used to. The one station i topped off at said it was high sulfur on the pump and not for use in model 2007 and later car and trucks. Is the high sulfur better when you can find it?? Also whats better for the MPG??
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Old Jun 6, 2006 | 04:14 PM
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From: Boerne, TX
As I understand it, the new ULSD fuel is being phased in due to `07 and newer trucks having particulate filters. These filters do not get along too well with the sulphur in the fuel, correct? What I`d like to know is, will there be any benefit (or deficit depending on your opinion) for our "old school" rigs as far as emissions/smoke reduction. What I`m trying to say is...will this stuff make my truck smoke less?
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