"California's deadline for the switch-over to low-sulfur diesel is Friday. A similar federal rule gives diesel suppliers elsewhere in the nation until Oct1."

The quote's from yesterday's local newspaper here in Sacramento. Does anyone have any idea if the new diesel fuel will pose any problems for the LBZ? The additive debate, I'm sure, will begin to heat up...

I've noticed a milage drop of 2mpg minimum!!


Oil Company vs. Me
....:nutkick:




-:t:shake:

I've noticed a milage drop of 2mpg minimum!!


Oil Company vs. Me
....:nutkick:




-:t:shake:

ME TOO!! I'm pissed!

My milage has dropped almost 4mpg at 95mph. I was getting a solid 14+ now i am getting 10 if i am lucky :bawl:

im gonna switch to no 2 home heating oil if thats the case.

I've noticed a milage drop of 2mpg minimum!!


Oil Company vs. Me
....:nutkick:




-:t:shake:
ME TOO!! I'm pissed!
Have you all noticed any difference in performance? Less power?

I haven't noticed much difference in power, only in the MPG. I dont have a tuner so I can say it smokes any different cause it doesnt smoke at all as it is.

Anyone with a tuner notice it doesn't smoke as much with the ULSD fuel?

I have been using the "new" fuel since June and have not noticed any difference in power or fuel mileage. I run premium road diesel with 5% soyoil. I get my fuel off a tank wagon 500 gallons at a time. The premium soydiesel I got last week was $.17 a gallon less than the town fuel, normally it cost a dime more than town fuel. I feel for you guys and gals that have to get your fuel from a gas/diesel station. I bought from a fuel station last winter when I was on a trip, the mileage dropped about 2mpg. Town diesel was $3.20 today gas was $2.59. Talk about a rip off.

Wait if I remember correctly doesnt the inside of the gas tank door say low sulfer fuel only? I know here in Ma most of the fuel I've purchased says "Low Sulfer Diesel " on the pump. Now maybe Ma already converted to these guidelines eveyone speaks of, I havent really paid much attention to it. I have a 2006 LBZ, I've read here about the 07 models only supposed to be run on low sulfer, but like I said my fuel tank door says Low sulfer diesel already.

As far as fuel mileage goes, in the 10 months I've had my truck I'm guilty of never checking what I get for mileage.

Wait if I remember correctly doesnt the inside of the gas tank door say low sulfer fuel only? I know here in Ma most of the fuel I've purchased says "Low Sulfer Diesel " on the pump. Now maybe Ma already converted to these guidelines eveyone speaks of, I havent really paid much attention to it. I have a 2006 LBZ, I've read here about the 07 models only supposed to be run on low sulfer, but like I said my fuel tank door says Low sulfer diesel already.

As far as fuel mileage goes, in the 10 months I've had my truck I'm guilty of never checking what I get for mileage.

new stuff is ultra low sulfer diesel.

Is the new fuel more expensive?

I noticed prices at the local AM/PM recently dropped about 10 cents for unleaded and increased 10 cents for diesel at the same time. I don't know if the fuel has changed but maybe that's the reason. I usually buy my fuel across the border in AZ (live in CA) so if the new fuel is a problem I can probably avoid it.

Is the new fuel more expensive?

I noticed prices at the local AM/PM recently dropped about 10 cents for unleaded and increased 10 cents for diesel at the same time. I don't know if the fuel has changed but maybe that's the reason. I usually buy my fuel across the border in AZ (live in CA) so if the new fuel is a problem I can probably avoid it.

When I was in Lake Tahoe last month, I filled up with the new ULSD, yes it was more expensive and it smells different -:t coming out the tailpipe, not the normal sweet scent.

Check this out... Info from the oil company. Just type chevron oil as the address and all the info on the new fuel is there. They have been puting it in tanks for months now to fully flush all the LSD out of the lines. You may have been using it for over a year now, depending on the brand.

LSD<500 ppm sulfur
ULSD<15 ppm sulfur

ULSD is slowly coming into a couple of stations around here.

I just was at the fuel station and the Diesel priced went up from $3.03 to $3.24 but, regular gas went down from $3.13 to $2.99. Now it looks like the new fuel drops your fuel economy at least a few MPG. WoW, diesel was the eviormentals friend in the 70" and 80's now it's the bad fuel and we are paying for it.

So nice, it's posted twice!

There is a difference between low sulfer and ultra low sulfer.

All hail the mighty big block!!!!

Looks like ya'lls MPG is getting closer to mine (12-14) what with all the epa crap they gotta have.

Off topic for a bit.... news ticker says the USCG is going out to a sailbote 27 miles off the coast near Cape Canaveral... WTF are these nuts doing out there with a tropical system around? OH WAIT... these must be the greenies strangling the dizzles.

LSD/ULSD IS $ 355 AROUND HERE, WHY THE ***** IS IT HIGHER IN IDAHO THAN OTHER STATES. IN STAINLY ID, IT $ 420 A GALLON:eek: :eek: :eek: :eek: :eek: :eek: :eek: :eek: :eek: :eek: :eek:

Are those prices for real or did you forget the decimal point?

All hail the mighty big block!!!!

Looks like ya'lls MPG is getting closer to mine (12-14) what with all the epa crap they gotta have.



I agree. I sure hope GM keeps the 8.1 around.

Duramax no longer makes any sense:
- 20% price premium over regular gasoline
- $10K price premium for the engine
- Uncertaintly over all the new emissions
- MPG only 2-4 better then a big block

Duramax only makes sense for the most extreme towing conditions. 8.1 is more fun to drive for everyday driving anyway. Anyone know if 8.1 is getting an output boost for '07. Are the rumors of 375HP/480 Ft Lbs. true?

I agree. I sure hope GM keeps the 8.1 around.

Duramax no longer makes any sense:
- 20% price premium over regular gasoline
- $10K price premium for the engine
- Uncertaintly over all the new emissions
- MPG only 2-4 better then a big block

Duramax only makes sense for the most extreme towing conditions. 8.1 is more fun to drive for everyday driving anyway. Anyone know if 8.1 is getting an output boost for '07. Are the rumors of 375HP/480 Ft Lbs. true?The order book for the 2007 Silverado Classic shows the 8.1L engine (RPO L18) at 330 hp [245.8 kW] @ 4200 rpm, 450 lb-ft of torque [607.5 N-m] @ 3200 rpm. Same as for 2006.

I think this sh*t is in you heads I still can get over 20mpg and the fuel isn't just going to become ULSD over night. They have they are already putting ULSD in the pipe lines and it’s slowly diluting LSD down to ULSD.


- 20% price premium over regular gasoline Not every where it depends on the area.
- $10K price premium for the engine You got ripped off if you paid $10k more for a Dmax
- Uncertaintly over all the new emissions Gassers still have more emissions crap
- MPG only 2-4 better then a big block I'm yet to hear of a 8.1 getting 18-16 mpg

Duramax only makes sense for the most extreme towing conditions. 8.1 is more fun to drive for everyday driving anyway. That’s you opinion, do you want to race? Anyone know if 8.1 is getting an output boost for '07. Are the rumors of 375HP/480 Ft Lbs. true?


:lol2:Where did you get that BS?

Originally Posted by davefr http://www.dieselplace.com/forum/images/buttons/viewpost.gif (http://www.dieselplace.com/forum/showthread.php?p=1275046#post1273699)
- 20% price premium over regular gasoline Not every where it depends on the area.

- The only market I care about is "my" market. For the last several years diesel has exceeded the price of gasoline. It's usually 20% higher then regular. (reg is about $2.89, diesel is $3.39). I'm not confident it'll ever drop relative to reg. gas prices with all the new formulations.

- $10K price premium for the engine You got ripped off if you paid $10k more for a Dmax

- I'm talking about the new LMM's. Duramax is currently about a $7k option and the rumors are that it'll go up by another $2-5K starting '07.


- Uncertaintly over all the new emissions Gassers still have more emissions crap

- Gasser emission equipment took a few years of refinement. I'm not confident LMM will be a good engine out of the shute due to all the radical changes. I hope I'm wrong.


- MPG only 2-4 better then a big block I'm yet to hear of a 8.1 getting 18-16 mpg.

- In everday driving 8.1's do about 10. LBZ's do about 14-15. (I'm talking everday vs. highway trips only). If rumors are true, ULSD is reducing MPG by a few points. (ie The better MPG is almost all negated by the fuel cost premium. It's now so close that fuel savings aren't a meaningful factor in the buying decision unless you do tons of highway driving.)

I wanted to buy a new HD GMT900 model with a Duramax, but I'm seriously reconsidering the 8.1. (assuming it's still around next year). I've heard it'll get a power increase next year and I've also heard it'll be discontinued. (no-one seems to know for sure). There's also the option to buy now but I really don't want to buy a new "old" truck.

I filled up with ULSD, Texaco Truck Stop, and completed the same trip I take nearly every week. Milage was the same: overall 18.1 according to DIC. I reset the avg mpg for the last couple of highway miles to check highway mpg and it was the same as before. If my foot is light and doing around 63 mph or so mpg will hit high 19s...put your foot in it 75 mph and mpg drops like a rock into the 16s low 17s. Essentially no change from before ULSD...at least for me. FWIW, I always use Stanadyne Performance additive.

We've supposedly been able to buy ULSD at a station here in San Diego for a while. At least some of the pumps are labled ULSD. I do not know how low it was in comparison to the LSD in the sulfur content but I did not notice any difference in economy.

I think our pumps are still LSD, and I also run Stanadyne performance additive. But I gots a question is off-road diesel also going to ULSD standards or is it staying the same. Just wondering.....G

I think our pumps are still LSD, and I also run Stanadyne performance additive. But I gots a question is off-road diesel also going to ULSD standards or is it staying the same. Just wondering.....G

Probably not since they'd need to refine two different grades of diesel at the refinery. As it is now they just add some dye and call it good for the off road stuff IIRC.

Off-road diesel is ULSD and we have emissions regs on our equipment too.

Off-road diesel is ULSD and we have emissions regs on our equipment too.


I should have clarified . I know in The Peoples Republic of California that all pumps as of yesterday were ulsd. But I live in the great Mitten state of Michigan and I think most pumps still are labeled @500ppm. I just didn't know if off-road had to change at the same time as all the regular pumps...G

I know in The Peoples Republic of California.... (California@500ppm)

Sounds like a truck driver. :blahblah:

I hate to say this guys but it varies, right now, state by state. The guy that delivers fuel for a few of us, tells us that off road is higher in sulfur than on road. This is as of now. Ask again next year and it could be different.

Sounds like a truck driver. :blahblah:


It's true.

This kills me are you guys expecting an armageddon with your first tank of ULSD. States have nothing to do with it, besides here in CA. It all depend how much fuel your area uses, where you get your supply, how much of a surplus you have, and ETC. If you really want to know what you sulfur rating is you have test it yourself I best it will even very from station to station.