As of october this year all gas stations will have new diesel fuel. The new fuel is to help reduce exhaust emission by reducing the sulfur content from 500ppm down to 7ppm. New disclaimers have come out warning of lower fuel economy 10-15% and that the new fuel may cause fuel leaks in older diesel engines. The leaks are caused by drying out seals that were used to the 500ppm.
Just a heads up for all you guys.

 

still getting diesel on post in Ft. Hood, they are still getting the old #2 diesel. I looked, but couldn't find any stickers for the 500ppm diesel.

 

been running ULSD (>15ppm) here in Atl since March of 05.

the only thing I noticed is my engine runs a bit more rough with it and no PS MMO than the LSD without PS MMO.

 

Can someone help me out here - how will less sulfur cause the seals to dry out?

 

[:-][:@][&:][:@][:'(] This makes me angry!!!

 

when sulfur content is removed from the fuel, lubrication is also removed. but fuel companies do add some lubrication to the fuel. . .not enough in my mind, but atleast they do supliment.

only the older trucks will be effected, I would say starting in 96 or so the seals in the fuel system were changed over to a better material that didnt absorb fuel. when the seals absor fuel they also absorb the sulfur, then when this new fuel hits them the sulfur content in the seal is pulled out in an attempt to maintain an equilebrium, in doing so the seal dries out and begins to crack causeing all sorts of fuel leaks.

 

I didn't know that- Thanks Drew. Additive companies are gonna love me!!! Can't use to much. Gonna stick with the mix of my stanadyne and pure lube.

 

Also fyi for any big riggers out there. The new 2007 trucks will have a particulate filter in the muffler. The muffler is ceramic and costs about $4000. Running 1 tank of the "old diesel" is equivelent to 33 tanks of the new stuff. The new muffler can't handle it and it will plug the muffler- no warranty on this. Also if you lose a turbo, no oil or smoke. If an injector goes bad, no smoke. If a head gasket fails, no smoke. This will obvoiusly make diagnostics a hell of a lot harder. With this new muffler, and a bunch of emission crap added to the engine, you should be able to put a white rag over the tail pipe drive all day and the rag should still be white at the end of the day.

 

Biodiesel is suppose to compensate for the lower sulfur in the near future when it comes to mileage and lube.

Can this new muffler be replaced with a filterless muffler?

 

I have run quite a few tanks of Bio through my '04.5 thus far. My mileage has remained the same as with the "old" stuff. (and believe me, I am quite **** about FE recording)

Of course to date, I am sure this has still been blended with the "old" stuff........