Diesel Grade??

patha

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Around where I live there are many truck stops for diesel and I don't know if its the same kind for the PSD or different. The sign says Diesel #2, thats the grade right? Is that what the PSD uses?

I've filled up at regular gas stations but never really noticed a #1 or #2.

Thanks
 

DaveBen

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#2 diesel is what you want to burn during the warm weather. They blend diesel by using a combination of #1 and #2 for colder weather (winter diesel). It is pretty much a one grade thing, you get what you get.

Dave
 

dpantazis

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patha said:
Around where I live there are many truck stops for diesel and I don't know if its the same kind for the PSD or different. The sign says Diesel #2, thats the grade right? Is that what the PSD uses?

patha-

psst: fill in your sig/profile so we know where you are from.

Numerical grades used to mean molecular weight of the fuel. #1 was lighter, 'purer', #2 was heavier, 'dirtier'. #1 gelled at colder temps. yada yada... pretty much old wives tales now.

#2 is all you see at the pump. But, #2 is not #2 anymore. the retailers are LAZY about relabeling their pumps. Example, my local BP company stores are advertised to have USLD and Premium fuel but have not re-badged the pumps. I still fuel at an AMOCO pump regularly. Its nostalgic... red white ans blue at a green and yellow store.

Diesel fuel quality is all about refining and amount of sulpher. In the old days of rotatry injection pumps, we relied on the supher to lube the pumps and injectors. This is like 50'-60's technology.

Sulphur = Soot and bad emissions.

Retail 'Regular' diesel is pretty much LOW sulphur fuel, less than 500 ppm sulphur (parts per million). There are fewer refineries making diesel and not that many grades. It does not pay for them to make too many flavors.

Most states that are CAFE or large metro areas have already switched to USLD, or <15 ppm.

Off road diesel is the rot gut stuff. Red dye stuff. Illegal to run on road. Usually, its the <500ppm.

The recommendation for high turnover is so that the fuel is fresh and less chance for contaminants and water.

2007 vehicles have more emissions controls than previous years. They are designed to run <15ppm sulphur fuels. Hence the warning labels we have been talking about.

Running cleaner fuel is always better, for your truck and the environment.

Color and clarity means nothing anymore.

Gell point- thats a different issue and more geographic. Blenders add anti-gels at the fuel depot. Now, if you are driving from florida to alaska, you might get gelling in your tank if you have florida fuel and are up north in the cold. Most of us add it for good measure.

have a look at these pages for more info-

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

http://api-ep.api.org/publications/...=display_body&er=1&bitmask=002002000000000000


dennis
 

patha

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Thanks, definitely makes things easier to understand.
 

dpantazis

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from this page-

http://www.etrucker.com/apps/news/article.asp?id=55112 in this thread-


"Shell said its refineries will be producing only ULSD. While some of the fuel it sells may have slightly higher levels due to sulfur being picked up in shipping, even higher sulfur-level fuel intended for off-road use still will have only about 20-22 ppm sulfur. Anyone with concerns about sulfur levels should discuss the matter with their fuel supplier, said Arcy."
 

Kleetus

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I agree up to the point about sulfur.

We need the yellow stuff in the fuel. 50-60's technology or not, it's still a valuable lubricant in the fuel for the injectors and all associated parts thereof.

The enviro-wackers are out of control. Period.

The process which removes the sulphur to the levels they're making up this year also removes a large portion of the heat energy in the fuel. Translation: #2 diesel is now more like #1.25 diesel. I can't wait to see how this crap runs in the winter.

Oh yeah, did I mention the 6% loss of fuel mileage from this wonderful stuff?

Makes sense, save a miniscule amout on emmissions, but burn 6% more fuel, and spend 10 cents more a gallon for an inferior product. Yeah, sign me up please! I know let's let them take over our school system! If they can do this much for the environment, just think our children will be smarter and less violent...

... oh wait... they already are in charge of our schools. Oops, my bad!
 

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