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Old 05-27-2008, 10:52 AM   #21
Motor31
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Flying J puts the ULSD sign in large letters on the edge of the roof over the big truck pumps. It's usually at one end or the other or the line of pumps. When you look at the diesel prices on their web site you can see they have 2 price columns one of LSD the other for ULSD. Lately the LSD side has been going away. While the price has been identical the LSD seems to be going away. I would imagine that at the stations that no longer list LSD, ULSD is all they have now even at the RV and auto diesel pumps. They are required by EPA now to have ULSD but not LSD.

I now carry a 5 gallon can of B99 biodiesel to add that to the tank to maintain a B2 concentration so that my fuel system gets the lubrication it needs that ULSD doesn't have any more. Three gallons each side is enough for that purpose. Biodiesel is available in most areas and a web site that lists suppliers is online. (http://biodiesel.org) Since biodiesel (B99) is not contaminated with sulphur it also complies with the ULSD edict from the EPA.
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Old 05-27-2008, 11:12 PM   #22
RodeWorthy
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Retailers who do not comply with labeling requirements for diesel fuel run the risk of a $32,000/day fine. There are specific requirements for the size and placement of the labels. In addition, it is illegal to fuel a vehicle requiring ULSD from a pump that is not labeled as dispensing ULSD.

Since June 2006 about 90% of highway diesel produced or imported for use in the U.S.A. has been ULSD.

The process of removing sulphur from ULSD also removes some of the naturally occurring lubricity of the fuel. Lubrication and anti-corrosion agents are added to ULSD before delivery to bring it back to EN590 specification. Sulphur itself is not considered a lubricant. There is also a 1% BTU/gal energy loss in the de-sulphuring process. There is no attempt to restore this. Engines are adjusted to compensate (i.e. lower compression ratio). Mileage may suffer as a result of the energy loss. It is expected this will also be in the order of 1%.

New diesel engines ('07 & up) can utilize up to B5 biodiesel. Blending with higher concentrations has to be done very accurately so as not to exceed the B5 level. Again the expensive Diesel Particulate Filter (DPF) is the vulnerable item should these limits be exceeded.

I visited only the RV pumps at Flying J's and all of them had the appropriate ULSD label. (see link) Apparently that is not the case at the truck islands.

EPA Enforcing Diesel Fuel Pump Label Requirements

Diesel Pump Labelling Requirements EPA

Mike, your truck will run nice and clean. Good effort. Dave, thanks for the cudos for Ont. It is appreciated.
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