ULSD Info (ultra-low sulfur diesel fuel)

[BWickson]

For those of you that are interested here are some links about our new fuel coming.



http://www.ecdiesel.com/about/product.asp



http://www.eia.doe.gov/oiaf/servicerpt/ulsd/



http://www.epa.gov/otaq/regs/fuels/diesel/diesel.htm#amend



http://www.chevron.com/products/prodserv/fuels/diesel/ulsd.shtml

 

[Ethdee]

Thanks, that was a good read!

 

[Matt400]

Here is Cummins take on it:

http://list.priceweber.com/cummins/td/ulsd.html

 

[Gary - K7GLD]

I wonder what BP's prediction is now on "adequate supplies", now that they have shut down all their Alaska pipeline supplies due to the big oil spill...



I can sure see what the stock market's predictions are... :{

 

[betterthanstock]

The only one that's news to me is the requirement to change older type oil sooner with ULSD. (from the last paragraph of Cummins quote above).



"If you run with a pre-2007 engine oil (such as CH-4) and ULSD fuel, you will have to modify your oil change schedule. "



I thought they want a lower sulphur (and other antiwear additives) oil, so as not to contaminate the new catalysts/traps, but why require more changes with older oil? Does it react with it?

Smells like bad news for engine wear, and for higher cost, but we will see. (I doubt the new oil will be as good minus those antiwear additives, but maybe they'll find different ones that do as good a job)



If removing the sulphur removes lubricity, what happens to oil lubricity when they remove the sulphur? I may be all wrong on this.



They could also be only referring to the new ULSD engines that will dirty up the oil even faster, and require more frequent changes, but not to all engines using ULSD. Maybe someone should ask Cummins what the paragraph really means.

 

[steved]

The only one that's news to me is the requirement to change older type oil sooner with ULSD. (from the last paragraph of Cummins quote above).



"If you run with a pre-2007 engine oil (such as CH-4) and ULSD fuel, you will have to modify your oil change schedule. "



I thought they want a lower sulphur (and other antiwear additives) oil, so as not to contaminate the new catalysts/traps, but why require more changes with older oil? Does it react with it?

Smells like bad news for engine wear, and for higher cost, but we will see. (I doubt the new oil will be as good minus those antiwear additives, but maybe they'll find different ones that do as good a job)



If removing the sulphur removes lubricity, what happens to oil lubricity when they remove the sulphur? I may be all wrong on this.



They could also be only referring to the new ULSD engines that will dirty up the oil even faster, and require more frequent changes, but not to all engines using ULSD. Maybe someone should ask Cummins what the paragraph really means.

I think the oil requirement is to prevent emissions, more than an incompatability... I mean, what are the new oils up to now... CI-4 plus?? If you are running CH-4, you are running an "outdated" oil... the newer oil has more soot control...



steved

 

[betterthanstock]

Steve, you're right. The CI-4 has been around since EGR in 04, I thought there was going to be yet another oil introduced (I think they are working on another one, maybe CJ-4?, but maybe for 2009). In that case it means for us with the pre-07 engines, we do not need to change any more often.



Here's more info from Dodge on ULSD:

 

[klenger]

Interesting note about LSD in the 2007 5. 9. They do not make any distinction between the 2007 and 2007. 5 models. I wonder if all 2007 models with the 5. 9 will get the current design engine.