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there is a station that has 2 pumps for big rigs that say ultra low sulfur, then there are 2 small pumps that say low sulfur illegal to run in 2007 or new is this the older diesel, is it better then the new, can the sell it or is it illegal and i should not buy it?
cant get the link to the pic to work so here is the link http://s1015.photobucket.com/albums/...111309_001.jpg
Get the LSD, it has more lubricity than the ULSD and your truck will run better and get better mileage with it. I fill up with LSD whenever I find it. Unfortunately, the closest station I know of that carries it is over 100 miles away.
The reason LSD is bad in the newer trucks is because of the DPF. Higher sulfur content will clog up the DPF quicker.
Since our trucks don't have DPF's, then it doesn't matter. LSD or ULSD can both be run in our trucks.
The energy content of LSD is slightly higher than ULSD, so you get a tad bit better mileage on LSD. People prefer LSD for this reason. Unfortunately, LSD will soon disappear forever.
I haven't seen any LSD for over a year. There are a few stations in Eastern Ky that still have the LSD stickers on the pumps, but it's not what comes out.