ULSD or LSD both at my pump??

[Docklobster]

Not sure which to fill up with on my new 06' Duramax, my station carries both LSD and ULSD. Besides the lube issue any thought on which fuel to use??

[SoTxPollock]

I'd like to add to that question. On my 02, if I have no choice but to fill up with ULSD, should I increase my fuel additive to make up for the loss in lubricity of the lowered sulfur content of the fuel? What would you recommend?

[More Power]

If LSD is available, use it, in your 2006 or earlier diesel. If using ULSD, I recommend treating the fuel with a diesel fuel treatment that advertises additional fuel lubricity - at the recommended ratio listed on the bottle. Treating at higher concentrations won't hurt anything - except for the cost of treatment.

Use a nationally available and recognized fuel treatment. GM recognizes both Stanadyne and Racor fuel treatments, but there are others out there with supporters.

Jim

[Dave]

I will not put ULSD in my 2006 unless I have no option. I have yet to see ULSD.

My truck will use LSD as long as it is still available.

ULSD has a lower BTU content than LSD

[FBJR]

Soon the ULSD is all there will be on the road. Even farm equip will have to use it soon.

Break out the BIO