I just bought a 2005 Duramax last fall. I am wondering if it will run on the new low-sulfer diesel fuel coming out in a couple of years.

Welcome to the group! This has been discussed some on the forum. Use the search link on the 2nd blue bar above and type in something like "low-sulfur fuel" and you'll get some good info. You can search like that on any topic and you'll usually find that a LOT of discussion has occured on almost every topic. The general concensus on the upcoming "ultra-low" sulfur fuel is that a lubricity additive will become even more important.

Some of us run bio-diesel blends, which also helps with lubricity. Good luck! ;)

I just bought a 2005 Duramax last fall. I am wondering if it will run on the new low-sulfer diesel fuel coming out in a couple of years.

A lot of OEMs are recommending the additives as well. Stanadyne is very popular. recommended by GM, John Deere, etc. (John Deere is now using thier private lable brand formulated to match Stanadyne)

You can actually hear a difference in the sound of the motor with the Stanadyne performance formula. We get it up here (ND) at $3 a bottle for the 'hot shot' size.

A lot of OEMs are recommending the additives as well. Stanadyne is very popular. recommended by GM, John Deere, etc. (John Deere is now using thier private lable brand formulated to match Stanadyne)

You can actually hear a difference in the sound of the motor with the Stanadyne performance formula. We get it up here (ND) at $3 a bottle for the 'hot shot' size.

What exactly does the attitive do?

What exactly does the attitive do?

Try this link for info direct from Stanadyne: http://www.stanadyne.com/new/ppt/showfile.asp?id=1295

Additive may become recommended but I remember when Tetra Ethyl Lead was removed from gasoline and the general concensus was that every engine on the road was doomed. Never affected anything we owned. Maybe same here when lower sulphur diesel hits the street.

I like Stanadyne. I used it for years but tried JK's mix of FPPF and picked up just a bit of MPG and really like the way the truck sounds and runs

Additive may become recommended but I remember when Tetra Ethyl Lead was removed from gasoline and the general concensus was that every engine on the road was doomed. Never affected anything we owned. Maybe same here when lower sulphur diesel hits the street.
Gas and Diesel are two different animals.

Gas and Diesel are two different animals.


I think he was drawing a parallel between the panic caused by a fuel change.

The, then new, unleaded gas caused people with the older cars to somewhat freak out over the change. Some current diesel owners are doing the same. I guess, just as he does, only time will tell.

Similar to the crazy Y2K thing on a much smaller level.

I think engine design and materials will play a big part in what will be affected. Japanese motorcycles were basically unaffected by the change to unleaded. BMW motorcycles started experiencing some serious problems with valve guides. Any Metallurgists lurking?

What exactly does the attitive do?


The Stanadyne web site will give you the best detail, but in a nut shell:

1) Lubrication of pump & injectors
2) Increases Cetane rating
3) De-emulsify water out of the fuel
4) Lowers pour point 40 degrees


Makes a difference...........

Here's one thread
http://www.dieselplace.com/forum/showthread.php?t=64458
And here's another
http://www.dieselplace.com/forum/showthread.php?t=65006

That'll get you going... Should be more in a search

Low sulfur fuel coming June 1st here in KY.