[hotcrazee]

I have a question. I have been reading alot about diesel fuel changing to a lower sulfur content come October 15 '06. How will this affect our 6.0's? If this has been asked B4, I apologize. I'm not to good at searching previos posts.
Gerald

 

[STG]

Low sulfur fuel burns cleaner. I imagine our engines, with their catalysts and smog equipment were designed with the cleaner fuel in mind.

Although I have not had any problems, perhaps the EGR valves will stay cleaner, longer.

 

[danbob]

I was told by a service manager that the 6.0's were designed to run on low sulfur fuel. So I would assume the newer fuel won't hurt 1 bit.

 

[Archie]

You've probably already burned some.

 

[teamroper60]

I just looked at that map.... If I am reading it right, we have it here... If so, I have probably burned some too and frankly, if I did, I didn't notice any difference in performance at all.....

 

[OT]

Maybe same here? Our d.fuel (& gas) is pumped in from Calif. Is this ULSD (ultra low sulphur diesel)? If so, I notice no diff. Pump still says D#2 now 3.089 gal. /ubbthreads/images/graemlins/eek.gif

 

[Kikoprice]

$3.08? Its $3.39 in Sunny San Diego.........But only $1.80 in even sunnier Baja, {its the same Diesel}

 

[Shadow_Grey]

Almost worth a trip South of the border...unless you get hijacked for your truck on the way.

 

[MikeL46]

I've heard that ULSD doesn't lubricate the injectors as well as the diesel we are used to.

Maybe a coincidence, but when we in Canada we burned ULSD (less than 0.5ppm) and we lost two injectors (and 5 days).

Mike

 

[Grumpy_Jim]

[ QUOTE ]
I've heard that ULSD doesn't lubricate the injectors as well as the diesel we are used to.


[/ QUOTE ]

Myth,
from what I have learned the sulfur doesn't provide lubricity, but as a by product of the process of removing the sulfur from 500ppm to 5ppm also removes lubricity properties.

Oil companies will put additives back into the fuel to obtain the desiered lubricity characteristics.

 

[rocky7184]

Sulfur does provide the lubricity.Do some research on the subject and you'll see for yourself.

 

[roofeditor]

[ QUOTE ]
Sulfur does provide the lubricity.Do some research on the subject and you'll see for yourself.

[/ QUOTE ]

Not actually the sulfur but other compounds that are removed when the sulfur is removed.

I did read some research


nitrogen compounds or naphthenic hydrocarbons are responsible

 

[frobozz]

[ QUOTE ]
Sulfur does provide the lubricity.Do some research on the subject and you'll see for yourself.

[/ QUOTE ]

OK...

Page 5 of THIS PDF says that the lower lubricity is from severe hydrotreating used to lower the sulfur levels.


THIS PAGE says it's the refiniing process that reduces the lubricity.

If you want to wade through the EPA's BIG DARN BOOK on the new fuel standards, you'll find the lubricity discussion starting on page 83. Or you can just go to APPENDIX A and on Page 8 see their assertion that sulfur serves no purpose whatsoever in diesel fuel, except that the process of removing it can reduce lubricity (and of course the removal process is expensive, which is why nobody does it unless forced to by regulations.)

Duncan