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Old February 14th, 2011, 11:51   #181
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Join Date: Feb 2010
Location: Rhode Island

Originally Posted by scdevon View Post
I don't see them producing two different spec pumps either. It's worth mentioning that quality control of ULSD in the U.S. probably wasn't all that great in the beginning and still might not be that great now; particularly with regard to wear scar rating. Europe probably has a leg up in Diesel fuel quality which could explain why pumps don't seem to fail in Europe as much.

In the early days of ULSD, it seems as if we had to rely on some "Bubba" at a fuel terminal to add enough precious lubricity additive to get our fuel to an unimpressive 520. A 460 rating is obviously better. A HPFP would probably operate for 30 years with 300 scar rating fuel. What wear scar rating does fuel have with no lubricity added at the terminal? 1000? 1500?
ULSD without additive package is in the range of 640-670 wear scar.

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